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C95.1

C95.1Chronic leukemia of unspecified cell type

Non-billable headerICD-10-CM

C95.1 is a non-billable header ICD-10-CM code for chronic leukemia of unspecified cell type. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with C95.1

These codes carry an Excludes1 note pointing at C95.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C95.1 alone.

  • C95.0Acute leukemia of unspecified cell type

Risk adjustment

C95.1 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 C95.1

3 child codes. Green means billable.

Related codes at this level

Codes that share C95. If C95.1 is not quite right, the correct code is usually one of these.

Questions about C95.1

Is C95.1 a billable ICD-10-CM code?
No. C95.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does C95.1 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).
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.