For Clinical Practice Groups (and Sub Groups) what are the criteria for grouping the disease diagnosis codes?
Clinical Practice Groups are derived from ICDO-3 Topography and Morphology code combinations. There are 15 broad groups and 179 sub groups. The 15 broad groups are: NON-NEOPLASTIC DIAGNOSES BENIGN NEOPLASMS BREAST CENTRAL NERVOUS SYSTEM GASTROINTESTINAL GENITOURINARY GYNAECOLOGICAL HAEMATOLOGY HEAD AND NECK LUNG OTHER CANCERS PRIMARY UNKNOWN SARCOMA SKIN UNCERTAIN/ UNSPECIFIED SITES The first 2 groups are non-cancer and benign tumors for all sites. The last group contains all uncertain behavior type (1) for all sites.
