C21
Malignant neoplasm of anus and anal canal
Non-billableCategory
Chapter: 2. Neoplasms
Coding Guidelines
Excludes2 (Not Included Here)
These conditions are not part of this code but may be reported additionally if documented
- malignant carcinoid tumors of the colon (C7A.02-)
- C43.51 - malignant melanoma of anal margin (C43.51)
- C43.51 - malignant melanoma of anal skin (C43.51)
- C43.51 - malignant melanoma of perianal skin (C43.51)
- other and unspecified malignant neoplasm of anal margin (C44.500, C44.510, C44.520, C44.590)
- other and unspecified malignant neoplasm of anal skin (C44.500, C44.510, C44.520, C44.590)
- other and unspecified malignant neoplasm of perianal skin (C44.500, C44.510, C44.520, C44.590)
