Belgian Cancer Registry on FHIR
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Belgian Cancer Registry on FHIR - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

CodeSystem: BCR Molecular Marker (Experimental)

Official URL: https://www.ehealth.fgov.be/standards/fhir/registries/bcr/CodeSystem/bcr-molecular-marker Version: 0.1.0
Draft as of 2026-05-04 Computable Name: BCRMolecularMarker

Molecular markers listed on Bijlage 55 vervolg 1. The form spells PIK3CA as 'PIKCA3'; the canonical gene symbol is preserved here.

This Code system is referenced in the content logical definition of the following value sets:

This case-sensitive code system https://www.ehealth.fgov.be/standards/fhir/registries/bcr/CodeSystem/bcr-molecular-marker defines the following codes:

CodeDisplayDefinition
ER Estrogen receptor Oestrogeen receptor status (ER).
PR Progesterone receptor Progesteron receptor status (PR).
HER2-IHC HER2 IHC score HER2 IHC score (0 / 1+ / 2+ / 3+).
HER2-IHC-ISH HER2 status (IHC + ISH combined) HER2 status op basis van IHC en ISH.
BRCA1-2 BRCA1/2 BRCA1/2 mutation status.
CHEK2 CHEK2 CHEK2 mutation status. Spelled 'CHECK2' on the source form.
PALB2 PALB2 PALB2 mutation status.
ATM ATM ATM mutation status.
PIK3CA PIK3CA PIK3CA mutation status. Spelled 'PIKCA3' on the source form.
KI67 Ki-67 before systemic therapy Ki-67 vóór systemische therapie. Result is expressed as a percentage.
OTHER Other Other marker — free-text marker name expected.