MCMCB Pro
D05.1

D05.1Intraductal carcinoma in situ of breast

Non-billable headerICD-10-CM

D05.1 is a non-billable header ICD-10-CM code for intraductal carcinoma in situ of breast. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

D05.1 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.

Code to one of these instead D05.1

3 child codes. Green means billable.

Related codes at this level

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

Questions about D05.1

Is D05.1 a billable ICD-10-CM code?
No. D05.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does D05.1 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.