HL7 FHIR Implementation Guide: Breast Cancer Data, Release 1 - US Realm (Draft for Comment 2)

Primary code systems defined as part of this Implementation Guide

Name Definition

Anatomical location or specimen further detailing directionality. Codes are from NCI


Histologic types of breast carcinomas, including invasive carcinoma and ductal carcinoma in situ. Codes are drawn from SNOMED CT; local codes are used where SNOMED CT codes are unavailable. The codes are intended to match the scope of breast carcinoma histologic types specified in ICD-O-3. Additional SNOMED CT codes may be appropriate to include in this value set. We are requesting feedback on the perceived need to request SNOMED CT codes to represent the histologic types currently represented by local codes.


The type of specimen obtained from the breast. Codes are drawn from SNOMED CT where available. Local codes are used where Snomed codes are currently unavailable.


Interpretations of risk as high, intermediate, or low. Answer set taken from LOINC LL3198-0.


When staging was done, relative to treatment events (qualifier).