C91.0

Non-billable

Acute lymphoblastic leukemia [ALL]

C91.0 is the ICD-10-CM code for Acute lymphoblastic leukemia [ALL]. It is a non-billable category code — use a more specific child code such as C91.00 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Parent
C91
Subcodes
3
Edition
FY2026

C00-D49 Neoplasms

Notes

  • Codes in subcategory C91.0- should only be used for T-cell and B-cell precursor leukemia

Frequently asked questions

What is ICD-10 code C91.0?
C91.0 is the ICD-10-CM code for "Acute lymphoblastic leukemia [ALL]". It falls under C00-D49 Neoplasms.
Is C91.0 a billable code?
No — C91.0 is a non-billable header code. Use a more specific child code (such as C91.00) for billing.
What are the subcodes of C91.0?
C91.0 has 3 more specific child codes, including C91.00, C91.01, C91.02.

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

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