Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...'true' if the medication is 'in reserve'. By default 'true'.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...Implementers SHOULD focus on supporting values from the value set Route of Administration.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• type @ $this

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Indicates how the medication is/was taken or should be taken by the patient.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Free text dosage instructions can be used for cases where the instructions are too complex to code. The content of this attribute does not include the name or description of the medication. When coded instructions are present, the free text instructions may still be present for display to humans taking or administering the medication. It is expected that the text instructions will always be populated. If the dosage.timing attribute is also populated, then the dosage.text should reflect the same information as the timing. Additional information about administration or preparation of the medication should be included as text.

Instructions in terms that are understood by the patient or consumer.

When medication should be administered.

This attribute might not always be populated while the Dosage.text is expected to be populated. If both are populated, then the Dosage.text should reflect the content of the Dosage.timing.

The timing schedule for giving the medication to the patient. This data type allows many different expressions. For example: "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013". Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

In a Medication Administration Record, for instance, you need to take a general specification, and turn it into a precise specification.

A set of rules that describe when the event is scheduled.

Many timing schedules are determined by regular repetitions.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

Either a duration for the length of the timing schedule, a range of possible length, or outer bounds for start and/or end limits of the timing schedule.

• type @ $this

Either a duration for the length of the timing schedule, a range of possible length, or outer bounds for start and/or end limits of the timing schedule.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If you have both bounds and count, then this should be understood as within the bounds period, until count times happens.

Repetitions may be limited by end time or total occurrences.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).

Some activities are not instantaneous and need to be maintained for a period of time.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).

Some activities are not instantaneous and need to be maintained for a period of time.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If no days are specified, the action is assumed to happen every day as otherwise specified. The elements frequency and period cannot be used as well as dayOfWeek.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

When time of day is specified, it is inferred that the action happens every day (as filtered by dayofWeek) on the specified times. The elements when, frequency and period cannot be used as well as timeOfDay.

An approximate time period during the day, potentially linked to an event of daily living that indicates when the action should occur.

When more than one event is listed, the event is tied to the union of the specified events.

Timings are frequently determined by occurrences such as waking, eating and sleep.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

BID etc. are defined as 'at institutionally specified times'. For example, an institution may choose that BID is "always at 7am and 6pm". If it is inappropriate for this choice to be made, the code BID should not be used. Instead, a distinct organization-specific code should be used in place of the HL7-defined BID code and/or a structured representation should be used (in this case, specifying the two event times).

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

• type @ $this

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept). 'true' if the medication is 'in reserve'. By default 'true'.

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

A coded specification of the anatomic site where the medication first enters the body.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

How drug should enter body. Implementers SHOULD focus on supporting values from the value set Route of Administration.

A code specifying the route or physiological path of administration of a therapeutic agent into or onto a patient's body.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

The identification of the code system that defines the meaning of the symbol in the code.

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

Need to be unambiguous about the source of the definition of the symbol.

A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

Need to refer to a particular code in the system.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Terminologies used often pre-coordinate this term with the route and or form of administration.

A coded value indicating the method by which the medication is introduced into or onto the body. Most commonly used for injections. For examples, Slow Push; Deep IV.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

The amount of medication administered.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If the type is not populated, assume to be "ordered".

Amount of medication per dose.

Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

The amount of therapeutic or other substance given at one administration event.

• type @ $this

The comparator is not used on a SimpleQuantity

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

The amount of therapeutic or other substance given at one administration event.

A set of ordered Quantities defined by a low and high limit.

The stated low and high value are assumed to have arbitrarily high precision when it comes to determining which values are in the range. I.e. 1.99 is not in the range 2 -> 3.

The amount of therapeutic or other substance given at one administration event.

A relationship of two Quantity values - expressed as a numerator and a denominator.

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.

Identifies the speed with which the medication was or will be introduced into the patient. Typically the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours. Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

A relationship of two Quantity values - expressed as a numerator and a denominator.

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.

The maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. For example, 1000mg in 24 hours.

The comparator is not used on a SimpleQuantity

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

The maximum total quantity of a therapeutic substance that may be administered to a subject per administration.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

The maximum total quantity of a therapeutic substance that may be administered per lifetime of the subject.

Indicates how the medication is/was taken or should be taken by the patient.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

Indicates the order in which the dosage instructions should be applied or interpreted.

If the sequence number of multiple Dosages is the same, then it is implied that the instructions are to be treated as concurrent. If the sequence number is different, then the Dosages are intended to be sequential.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Free text dosage instructions can be used for cases where the instructions are too complex to code. The content of this attribute does not include the name or description of the medication. When coded instructions are present, the free text instructions may still be present for display to humans taking or administering the medication. It is expected that the text instructions will always be populated. If the dosage.timing attribute is also populated, then the dosage.text should reflect the same information as the timing. Additional information about administration or preparation of the medication should be included as text.

Supplemental instructions to the patient on how to take the medication (e.g. "with meals" or"take half to one hour before food") or warnings for the patient about the medication (e.g. "may cause drowsiness" or "avoid exposure of skin to direct sunlight or sunlamps").

Information about administration or preparation of the medication (e.g. "infuse as rapidly as possibly via intraperitoneal port" or "immediately following drug x") should be populated in dosage.text.

Additional instruction is intended to be coded, but where no code exists, the element could include text. For example, "Swallow with plenty of water" which might or might not be coded.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Instructions in terms that are understood by the patient or consumer.

When medication should be administered.

This attribute might not always be populated while the Dosage.text is expected to be populated. If both are populated, then the Dosage.text should reflect the content of the Dosage.timing.

The timing schedule for giving the medication to the patient. This data type allows many different expressions. For example: "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013". Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

In a Medication Administration Record, for instance, you need to take a general specification, and turn it into a precise specification.

A set of rules that describe when the event is scheduled.

Many timing schedules are determined by regular repetitions.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

Either a duration for the length of the timing schedule, a range of possible length, or outer bounds for start and/or end limits of the timing schedule.

• type @ $this

Either a duration for the length of the timing schedule, a range of possible length, or outer bounds for start and/or end limits of the timing schedule.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If you have both bounds and count, then this should be understood as within the bounds period, until count times happens.

Repetitions may be limited by end time or total occurrences.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).

Some activities are not instantaneous and need to be maintained for a period of time.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

For some events the duration is part of the definition of the event (e.g. IV infusions, where the duration is implicit in the specified quantity and rate). For others, it's part of the timing specification (e.g. exercise).

Some activities are not instantaneous and need to be maintained for a period of time.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If no days are specified, the action is assumed to happen every day as otherwise specified. The elements frequency and period cannot be used as well as dayOfWeek.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

When time of day is specified, it is inferred that the action happens every day (as filtered by dayofWeek) on the specified times. The elements when, frequency and period cannot be used as well as timeOfDay.

An approximate time period during the day, potentially linked to an event of daily living that indicates when the action should occur.

When more than one event is listed, the event is tied to the union of the specified events.

Timings are frequently determined by occurrences such as waking, eating and sleep.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

BID etc. are defined as 'at institutionally specified times'. For example, an institution may choose that BID is "always at 7am and 6pm". If it is inappropriate for this choice to be made, the code BID should not be used. Instead, a distinct organization-specific code should be used in place of the HL7-defined BID code and/or a structured representation should be used (in this case, specifying the two event times).

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

• type @ $this

Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept). 'true' if the medication is 'in reserve'. By default 'true'.

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

A coded specification of the anatomic site where the medication first enters the body.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

How drug should enter body. Implementers SHOULD focus on supporting values from the value set Route of Administration.

A code specifying the route or physiological path of administration of a therapeutic agent into or onto a patient's body.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.

Need to be unambiguous about the source of the definition of the symbol.

The version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged.

Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.

A symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination).

Need to refer to a particular code in the system.

A representation of the meaning of the code in the system, following the rules of the system.

Need to be able to carry a human-readable meaning of the code for readers that do not know the system.

Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.

This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Terminologies used often pre-coordinate this term with the route and or form of administration.

A coded value indicating the method by which the medication is introduced into or onto the body. Most commonly used for injections. For examples, Slow Push; Deep IV.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Allows for alternative encodings within a code system, and translations to other code systems.

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

Very often the text is the same as a displayName of one of the codings.

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

The amount of medication administered.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

• value @ url

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

If the type is not populated, assume to be "ordered".

Amount of medication per dose.

Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

The amount of therapeutic or other substance given at one administration event.

• type @ $this

The comparator is not used on a SimpleQuantity

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

The amount of therapeutic or other substance given at one administration event.

A set of ordered Quantities defined by a low and high limit.

The stated low and high value are assumed to have arbitrarily high precision when it comes to determining which values are in the range. I.e. 1.99 is not in the range 2 -> 3.

The amount of therapeutic or other substance given at one administration event.

A relationship of two Quantity values - expressed as a numerator and a denominator.

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.

Identifies the speed with which the medication was or will be introduced into the patient. Typically the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours. Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.

A relationship of two Quantity values - expressed as a numerator and a denominator.

The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.

The maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. For example, 1000mg in 24 hours.

The comparator is not used on a SimpleQuantity

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

The maximum total quantity of a therapeutic substance that may be administered to a subject per administration.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

The maximum total quantity of a therapeutic substance that may be administered per lifetime of the subject.