Neoplasm Table
anus, anal
| Site | Malignant primary | Malignant secondary | Ca in situ | Benign | Uncertain behavior | Unspecified behavior |
|---|---|---|---|---|---|---|
| anus, anal | C21.0 | C78.5 | D01.3 | D12.9 | D37.8 | D49.0 |
| canal | C21.1 | C78.5 | D01.3 | D12.9 | D37.8 | D49.0 |
| cloacogenic zone | C21.2 | C78.5 | D01.3 | D12.9 | D37.8 | D49.0 |
| margin — see also Neoplasm, anus, skin | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| overlapping lesion with rectosigmoid junction or rectum | C21.8 | — | — | — | — | — |
| skin | C44.500 | C79.2 | D04.5 | D23.5 | D48.5 | D49.2 |
| basal cell carcinoma | C44.510 | — | — | — | — | — |
| specified type NEC | C44.590 | — | — | — | — | — |
| squamous cell carcinoma | C44.520 | — | — | — | — | — |
| sphincter | C21.1 | C78.5 | D01.3 | D12.9 | D37.8 | D49.0 |
Use the index to find a code, then confirm it in the Tabular List before assigning it. A code ending in a dash is incomplete, and a code in [brackets] is a manifestation code reported after the underlying condition. Search the whole index.
Frequently asked questions
What are the ICD-10-CM neoplasm codes for anus, anal?
Per the ICD-10-CM Neoplasm Table: malignant primary C21.0; malignant secondary C78.5; ca in situ D01.3; benign D12.9; uncertain behavior D37.8; unspecified behavior D49.0. Always confirm the code, and add the required 7th character where applicable, in the Tabular List.
ICD-10-CM Neoplasm Table maintained by CDC/NCHS (public domain), from the CMS FY2027 release.