C95.1Header code — not billable

Chronic leukemia of unspecified cell type

Chapter
2. Neoplasms
Category
C95
Effective date
October 1, 2026

Related codes in category C95

Frequently asked questions

What is ICD-10 code C95.1?

C95.1 is an ICD-10-CM diagnosis code for Chronic leukemia of unspecified cell type.

Is C95.1 a billable code?

No. C95.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is C95.1 in?

C95.1 falls under Chapter 2: Neoplasms.

When did C95.1 become effective?

C95.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C95.1?

C95.1 belongs to category C95, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.