PanCareSurPass Project HL7 FHIR Implementation Guide
1.0.0 - release 150

PanCareSurPass Project HL7 FHIR Implementation Guide, published by PanCareSurPass Project. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/pcsp/ and changes regularly. See the Directory of published versions

## CodeSystem: International Classification of Diseases for Oncology, Third Edition (Experimental)

Official URL: http://terminology.hl7.org/CodeSystem/icd-o-3 | Version: 1.0.0
Active as of 2025-10-16 | Computable Name: ICD_O_3

The International Classification of Diseases for Oncology, Third Edition (ICD-O-3) is a coding system used primarily for classifying and coding neoplasms (tumors) based on their topography (site) and morphology (histology). It is widely used in cancer registries and epidemiological research.

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

- ICDO3MorphologyVs
- ICDO3TopographyVs

This case-sensitive code system `http://terminology.hl7.org/CodeSystem/icd-o-3` provides a fragment that includes following codes:

Code | Display
8260/3 | Papillary adenocarcinoma, NOS
9181/3 | Hepatoblastoma, NOS
9186/3 | Hepatocellular carcinoma, fibrolamellar
9510/3 | Medulloblastoma, NOS