C91.40
BillableHairy cell leukemia not having achieved remission
C91.40 is the ICD-10-CM code for Hairy cell leukemia not having achieved remission. It is a billable, specific code valid for reimbursement.
C00-D49 Neoplasms
Includes
- •Hairy cell leukemia with failed remission
- •Hairy cell leukemia NOS
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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