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D05.10

D05.10Intraductal carcinoma in situ of unspecified breast

Billable / specific codeICD-10-CMunspecified

D05.10 is a billable, specific ICD-10-CM code for intraductal carcinoma in situ of unspecified breast. It is valid for submission on a claim.

Risk adjustment

D05.10 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

D05.10 is named in 13 Medicare coverage policies 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

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Related codes at this level

Codes that share D05.1. If D05.10 is not quite right, the correct code is usually one of these.

Questions about D05.10

Is D05.10 a billable ICD-10-CM code?
Yes. D05.10 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D05.10 sit in the tabular list?
Neoplasms (C00-D49), in the block In situ neoplasms (D00-D09).
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.