CH_CRL (v0.2.1)
This page is part of the CH-CRL (R4) (v0.2.1: STU) based on FHIR R4. This is the current published version. For a full list of available versions, see the Directory of published versions 
The data item indicates the presence or absence of tumour cells in the walls of venous blood vessels, as noted microscopically by the pathologist.
This value set includes codes from the following code systems:
http://fhir.ch/ig/ch-crl/CodeSystem/nkrs-venousinvasion