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D01.3

Billable

Carcinoma in situ of anus and anal canal

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Abnormal cells found in the anus or anal canal that have the potential to become cancer but have not yet invaded deeper tissues.

Coding Tips

  • •Verify documentation specifies anal location versus rectal location to ensure correct code selection
  • •This code includes both the anal verge and anal canal

Excludes 1 — Do NOT code together

  • 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)

Code Hierarchy

└D01Carcinoma in situ of other and unspecified digestive organs└D01.3Carcinoma in situ of anus and anal canal
└D01.3Carcinoma in situ of anus and anal canal

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