The basis of how a PATIENT DIAGNOSIS relating to cancer was identified.
For further guidance on recording of the National Codes, see the National Disease Registration Service website at: Cancer Outcomes and Services Data Set User Guide.
National Codes:
| 0 | Death Certificate only (DCO): Information provided is from a death certificate |
| 1 | Clinical: Diagnosis made before death, but without any of the following codes |
| 2 | Clinical Investigation: All diagnostic techniques, including X-ray, Endoscopy, imaging, Ultrasound Scan, exploratory surgery (such as laparotomy), and autopsy, without a TISSUE diagnosis |
| 4 | Specific Tumour markers: Includes biochemical and/or immunological markers which are specific for a Tumour site |
| 5 | Cytology: Examination of CELLS from a primary or secondary site, including fluids aspirated by Endoscopy or needle; also includes the microscopic examination of peripheral blood and bone marrow aspirates, immunophenotyping by flow cytometry and a liquid Biopsy in the absence of pathology |
| 6 | Histology of a metastasis: Histological examination of TISSUES from a metastasis, including autopsy specimens (Retired 1 April 2024) |
| 7 | Histology of a primary Tumour: Histological examination of TISSUE from the primary Tumour, however obtained, including all cutting and bone marrow Biopsies. Also includes autopsy specimens of a primary Tumour (Retired 1 April 2024) |
| 7.1 | Histology of the primary Tumour: Histologic examination of TISSUE from the primary Tumour, however obtained, including all cutting techniques and bone marrow Biopsies |
| 7.2 | Histology of a metastasis: No histology of the primary Tumour |
| 7.3 | Histology at autopsy: No histology before autopsy |
| 8 | Cytogenetic and/or molecular testing: Detection of Tumour-specific genetic abnormalities or genetic changes in the Tumour, including techniques such as karyotyping, FISH (Fluorescent In Situ Hybridization), PCR (Polymerase Chain Reaction), DNA (Deoxyribonucleic Acid) sequencing |
| 9 | Unknown: No information on how the PATIENT DIAGNOSIS has been made (e.g. ELECTRONIC HEALTH RECORD only) |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| formerly | BASIS OF DIAGNOSIS |
| plural | BASES OF DIAGNOSIS FOR CANCER |