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D01.3

Billable

Carcinoma in situ of anus and anal canal

D01.3 is the ICD-10-CM code for Carcinoma in situ of anus and anal canal. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
C00-D49
Parent
D01
Edition
FY2026

C00-D49 Neoplasms

What this means — in plain language

MedlinePlus · NIH

What 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 ↗
Anal Cancer Treatment (PDQ®) ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • •Anal intraepithelial neoplasia III [AIN III]
  • •Severe dysplasia of anus

Excludes1 — not coded here

  • •anal intraepithelial neoplasia I and II [AIN I and AIN II] (K62.82)
  • •carcinoma in situ of anal margin (D04.5)
  • •carcinoma in situ of anal skin (D04.5)
  • •carcinoma in situ of perianal skin (D04.5)

Frequently asked questions

What is ICD-10 code D01.3?
D01.3 is the ICD-10-CM code for "Carcinoma in situ of anus and anal canal". It falls under C00-D49 Neoplasms.
Is D01.3 a billable code?
Yes — D01.3 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from D01.3?
Excludes1 (not coded here): anal intraepithelial neoplasia I and II [AIN I and AIN II] (K62.82); carcinoma in situ of anal margin (D04.5); carcinoma in situ of anal skin (D04.5); carcinoma in situ of perianal skin (D04.5).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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