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C91.4

Hairy cell leukemia

Non-billableCategory

Code Hierarchy

C91C91.4

Chapter: 2. Neoplasms

Section: C81-C96 - Malignant neoplasms of lymphoid, hematopoietic and related tissue

Coding Guidelines

Inclusion Terms

  • Leukemic reticuloendotheliosis

Specific Codes (3)

C91.40Billable

Hairy cell leukemia not having achieved remission

C91.41Billable

Hairy cell leukemia, in remission

C91.42Billable

Hairy cell leukemia, in relapse

Related Codes

C91.0Category

Acute lymphoblastic leukemia [ALL]

C91.1Category

Chronic lymphocytic leukemia of B-cell type

C91.3Category

Prolymphocytic leukemia of B-cell type

C91.5Category

Adult T-cell lymphoma/leukemia (HTLV-1-associated)

C91.6Category

Prolymphocytic leukemia of T-cell type

C91.ACategory

Mature B-cell leukemia Burkitt-type

C91.ZCategory

Other lymphoid leukemia

C91.9Category

Lymphoid leukemia, unspecified

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