Kenya National Cancer Control Programme (NCCP) FHIR Implementation Guide
0.1.0 - ci-build Kenya flag

Kenya National Cancer Control Programme (NCCP) FHIR Implementation Guide, published by Digital Health Agency (DHA), Kenya. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/IntelliSOFT-Consulting/nccpFHIRIG/ and changes regularly. See the Directory of published versions

CodeSystem: Kenya Radiotherapy Target Volume Code System

Official URL: https://nshr-uat.sha.go.ke/fhir/CodeSystem/rt-target-volume-cs Version: 0.1.0
Active as of 2026-06-04 Computable Name: RTTargetVolumeCS

ICRU-defined target volume concepts used in radiotherapy planning.

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

This case-sensitive code system https://nshr-uat.sha.go.ke/fhir/CodeSystem/rt-target-volume-cs defines the following codes:

CodeDisplayDefinition
GTV GTV — Gross Tumour Volume Macroscopic extent of tumour visible on imaging.
CTV CTV — Clinical Target Volume GTV plus margin for subclinical microscopic disease.
ITV ITV — Internal Target Volume CTV plus internal margin for organ motion.
PTV PTV — Planning Target Volume ITV plus set-up margin for treatment delivery uncertainty.
OAR OAR — Organ at Risk Normal tissue structure whose radiation tolerance limits the prescribed dose.
PRV PRV — Planning Risk Volume OAR plus margin for positioning uncertainty.
RVR RVR — Remaining Volume at Risk Volume outside GTV/CTV that receives dose.
BOOST Boost Volume Sub-volume receiving a higher dose than the main treatment.

Description of the above table(s).