C93.1Header code — not billable

Chronic myelomonocytic leukemia

Chapter
2. Neoplasms
Category
C93
Effective date
October 1, 2026

Related codes in category C93

Frequently asked questions

What is ICD-10 code C93.1?

C93.1 is an ICD-10-CM diagnosis code for Chronic myelomonocytic leukemia.

Is C93.1 a billable code?

No. C93.1 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 C93.1 in?

C93.1 falls under Chapter 2: Neoplasms.

When did C93.1 become effective?

C93.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C93.1?

C93.1 belongs to category C93, 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.