This item has been superseded by a newer version by one or more Registration Authorities.
Definition
The histopathological grade, differentiation or phenotype describes how little the tumour resembles the normal tissue from which it arose, as represented by a code.
Components
Data Element (this item)
-
Data Element ConceptPerson with cancer—histopathological grade
-
Object ClassPerson with cancer
-
PropertyHistopathological grade
-
-
Value DomainHistopathological grade code N
Representation
This representation is based on the value domain for this data element, more information is available at " Histopathological grade code N ".| Data Type | Number |
|---|---|
| Format | N |
| Maximum character length | 1 |
| Value | Meaning | Start Date | End Date | |
|---|---|---|---|---|
| Permissible Values | 1 | Grade 1: Well differentiated, differentiated, NOS | ||
| 2 | Grade 2: Moderately differentiated, moderately well differentiated, intermediate differentiation | |||
| 3 | Grade 3: Poorly differentiated | |||
| 4 | Grade 4: Undifferentiated, anaplastic | |||
| 5 | T-cell: T-cell | |||
| 6 | B-cell: B-cell, Pre-B, B-Precursor | |||
| 7 | Null-cell: Null cell, Non T- non B | |||
| 8 | NK: Natural killer cell | |||
| Supplementary Values | 9 | Grade/differentiation unknown: Grade/cell type not determined, not stated or not applicable |
Comments
Guide for use:
Only one code can be recorded.
World Health Organisation
Commission on Cancer American College of Surgeons
References
World Health Organisation International Classification of Diseases Oncology, Third edition (ICD-O-3) (2000)
Commission on Cancer, Standards of the Commission on Cancer Registry Operations and Data Standards (ROADS) Volume II (1998)
This content Based on Australian Institute of Health and Welfare material. Attribution provided as required under the AIHW CC-BY licence.