This case-sensitive code system http://fhir.ch/ig/ch-crl/CodeSystem/nkrs-variables defines the following codes:

Code	Display
3.6.2	Associated in situ tumour
3.9.1	ICCC-3 main group
3.9.2	ICCC-3 code
3.9.3	ICCC-3 extended code
4.19	COG staging
4.20	COG ALL staging
4.21	FIGO staging
4.22	INRGSS staging
4.23	IRSS staging
4.24	Lugano staging
4.25	PRETEXT staging
4.28	Rhabdomyosarcoma site staging
4.30	DSSplus
4.31	SIOP staging
4.32	St. Jude / Murphy staging
4.33.2	Toronto Tier II (manual) staging
4.34	Creasman grading system
4.35	Elston/Ellis grading system
4.36	SalzerKuntschik grading system
4.37	Shimada grading system
4.38	WHO(CNS) grading system
4.39	Clinical tumour size
4.40	Pathological tumour size
6.1	Residual invasive tumour
6.2	Residual in-situ tumour
6.3	Resection margin invasive tumour
6.4	Resection margin in-situ tumour
8.4	Morphology term before change of main diagnosis
8.5	Morphology term after Transformation
8.6	Topography(s) of post-diagnosis metastases
10.3	HIV/AIDS
10.9	Cerebrovascular Accident or Transient Ischemic Attack
10.11	Hemiplegia / Paraplegia
10.12	Connective Tissue Disease - Rheumatic disease