C93

Non-billable

Monocytic leukemia

C93 is the ICD-10-CM code for Monocytic leukemia. It is a non-billable category code — use a more specific child code such as C93.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
5
Edition
FY2026

C00-D49 Neoplasms

Includes

  • monocytoid leukemia

Excludes1 — not coded here

  • personal history of leukemia (Z85.6)

Frequently asked questions

What is ICD-10 code C93?
C93 is the ICD-10-CM code for "Monocytic leukemia". It falls under C00-D49 Neoplasms.
Is C93 a billable code?
No — C93 is a non-billable header code. Use a more specific child code (such as C93.0) for billing.
What are the subcodes of C93?
C93 has 5 more specific child codes, including C93.0, C93.1, C93.3.
What is excluded from C93?
Excludes1 (not coded here): personal history of leukemia (Z85.6).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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