C21.8
BillableMalignant neoplasm of overlapping sites of rectum, anus and anal canal
C21.8 is the ICD-10-CM code for Malignant neoplasm of overlapping sites of rectum, anus and anal canal. It is a billable, specific code valid for reimbursement.
C00-D49 Neoplasms
What this means — in plain language
MedlinePlus · NIHWhat is anal cancer? Your anus is the opening at the end of your large intestine. It is where stool (poop) leaves your body. The anus is formed partly from your outer layers of skin and partly from your intestine. Anal cancer is a type of cancer that forms in the tissues of your anus. Who is more likely to develop anal cancer? Anyone can get anal cancer, but you are more likely to develop it if you: You have an…
Read more about Anal Cancer at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Malignant neoplasm of anorectal junction
- •Malignant neoplasm of anorectum
- •Primary malignant neoplasm of two or more contiguous sites of rectum, anus and anal canal
Medications indicated for this condition
FDA labelingDrugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
Look up another ICD-10 code or condition