Morphology of cancer code (ICD-O-3) NNNN/N

Identifying and definitional attributes

Metadata item type:Value Domain
METeOR identifier:399496
Registration status:Health, Standard 07/12/2011
Definition:The ICD-O (3rd edition) code set representing the histology and behaviour of cancer tissue.

Representational attributes

Classification scheme:International Classification of Diseases for Oncology 3rd edition
Representation class:Code
Data type:Number
Format:NNNN/N
Maximum character length:5

Collection and usage attributes

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.

Source and reference attributes

Origin:International Classification of Diseases for Oncology, Third Edition (ICD-O-3)

Relational attributes

Related metadata references:

Supersedes Morphology of cancer code (ICDO-3) NNNN/N Health, Superseded 07/12/2011

Data elements implementing this value domain:

Person with cancer—morphology of cancer, code (ICD-O-3) NNNN/N Health, Standard 07/12/2011