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C91.10

✓ Billable

Chronic lymphocytic leukemia of B-cell type not having achieved remission

Neoplasms (C00-D49)

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Also Known As

Chronic lymphocytic leukemia of B-cell type with failed remissionChronic lymphocytic leukemia of B-cell type NOS

❌ Excludes1

inherited from C91.1

Rules from parent category C91.1: Chronic lymphocytic leukemia of B-cell type

  • • lymphoplasmacytic lymphoma (C83.0-)

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Code Information

CodeC91.10
BillableYes
ParentC91.1
CategoryNeoplasms (C00-D49)
Excludes11 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)