Definition
The ICD-O (3rd edition) code set representing the histology and behaviour of cancer tissue.
Representation
Data Type | Number |
---|---|
Format | NNNN/N |
Maximum character length | 5 |
Comments
Guide for use:
ICD-O morphology describes histology and behaviour as separate variables, recognising that there are a large number of possible combinations.
In ICD-O, morphology is a 4-digit number ranging from 8000 to 9989, and behaviour is a single digit which can be 0, 1, 2, 3, 6 or 9.
When the morphology is unknown, record 8000 and the appropriate behaviour code. For example, a tumour of unknown morphology with a behaviour code of "3" for a malignant primary site tumour would be recorded as 8000/3.
Origin:
International Classification of Diseases for Oncology, Third Edition (ICD-O-3)
References
Related content
Relation | Count |
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Data Elements implementing this Value Domain | 1 |