MCMCB Pro
C44.510

C44.510Basal cell carcinoma of anal skin

Billable / specific codeICD-10-CM

C44.510 is a billable, specific ICD-10-CM code for basal cell carcinoma of anal skin. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Basal cell carcinoma of anal margin
  • Basal cell carcinoma of perianal skin

Risk adjustment

C44.510 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

C44.510 is named in 69 Medicare coverage policies 69 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52450Billing and Coding: Paclitaxel (e.g., Taxol®/Abraxane ™)
  • A52479Oral Anticancer Drugs - Policy Article
  • A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
  • A53883Billing and Coding: Mohs Micrographic Surgery (MMS)

Related codes at this level

Codes that share C44.51. If C44.510 is not quite right, the correct code is usually one of these.

Questions about C44.510

Is C44.510 a billable ICD-10-CM code?
Yes. C44.510 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C44.510 sit in the tabular list?
Neoplasms (C00-D49), in the block Melanoma and other malignant neoplasms of skin (C43-C44).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.