Generated Narrative: ValueSet ActSubstanceAdminSubstitutionCode This value set includes codes based on the following rules: Include codes fromhttp://terminology.hl7.org/CodeSystem/v3-substanceAdminSubstitution version ?2018-08-12 where concept is-a _ActSubstanceAdminSubstitutionCode This value set excludes codes based on the following rules: Exclude these codes as defined in http://terminology.hl7.org/CodeSystem/v3-substanceAdminSubstitution version ?2018-08-12 Code Display Definition _ActSubstanceAdminSubstitutionCode ActSubstanceAdminSubstitutionCode Description: Substitution occurred or is permitted with another product that may potentially have different ingredients, but having the same biological and therapeutic effects. N none No substitution occurred or is permitted.