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

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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