This item has been superseded by a newer version by one or more Registration Authorities.
Definition
The ICDO (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:
ICDO morphology describes histology and behaviour as separate variables, recognising that there are a large number of possible combinations.
In ICDO, 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.
Record morphology codes in accordance with ICDO coding standards. Use the 5th-digit to record behaviour. The 5th-digit behaviour code numbers used in ICDO are listed below:
0 Benign
1 Uncertain whether benign or malignant
- borderline malignancy
- low malignant potential
2 Carcinoma in situ
- intraepithelial
- non-infiltrating
- non-invasive
3 Malignant, primary site
6 Malignant, metastatic site
- malignant, secondary site
9 Malignant, uncertain whether primary or metastatic site
Origin:
International Classification of Diseases for Oncology, Third Edition (ICDO-3)
References
Related content
| Relation | Count |
|---|---|
| Data Elements implementing this Value Domain | 1 |