C91 LYMPHOID LEUKEMIA

Code Information

  • Diagnosis Code: C91
  • Short Description: Lymphoid leukemia
  • Long Description: Lymphoid leukemia
  • Code Version: 2025 ICD-10-CM

The code C91 is NOT VALID for claim submission

Code Classification

References to Index of Diseases and Injuries

The code C91 has the following ICD-10-CM references to the Index of Diseases and Injuries

  • Type 1 Excludes Notes:
    • personal history of leukemia (@Z85.6*)

Similar Codes

ICD-10 Code ICD-10 Description
C91.0 Acute lymphoblastic leukemia [ALL]
C91.00 Acute lymphoblastic leukemia not having achieved remission
C91.01 Acute lymphoblastic leukemia, in remission
C91.02 Acute lymphoblastic leukemia, in relapse
C91.1 Chronic lymphocytic leukemia of B-cell type
C91.10 Chronic lymphocytic leukemia of B-cell type not having achieved remission
C91.11 Chronic lymphocytic leukemia of B-cell type in remission
C91.12 Chronic lymphocytic leukemia of B-cell type in relapse
C91.3 Prolymphocytic leukemia of B-cell type
C91.30 Prolymphocytic leukemia of B-cell type not having achieved remission
C91.31 Prolymphocytic leukemia of B-cell type, in remission
C91.32 Prolymphocytic leukemia of B-cell type, in relapse
C91.4 Hairy cell leukemia
C91.40 Hairy cell leukemia not having achieved remission
C91.41 Hairy cell leukemia, in remission
C91.42 Hairy cell leukemia, in relapse
C91.5 Adult T-cell lymphoma/leukemia (HTLV-1-associated)
C91.50 Adult T-cell lymphoma/leukemia (HTLV-1-associated) not having achieved remission
C91.51 Adult T-cell lymphoma/leukemia (HTLV-1-associated), in remission
C91.52 Adult T-cell lymphoma/leukemia (HTLV-1-associated), in relapse
C91.6 Prolymphocytic leukemia of T-cell type
C91.60 Prolymphocytic leukemia of T-cell type not having achieved remission
C91.61 Prolymphocytic leukemia of T-cell type, in remission
C91.62 Prolymphocytic leukemia of T-cell type, in relapse
C91.9 Lymphoid leukemia, unspecified
C91.90 Lymphoid leukemia, unspecified not having achieved remission
C91.91 Lymphoid leukemia, unspecified, in remission
C91.92 Lymphoid leukemia, unspecified, in relapse
C91.A Mature B-cell leukemia Burkitt-type
C91.A0 Mature B-cell leukemia Burkitt-type not having achieved remission
C91.A1 Mature B-cell leukemia Burkitt-type, in remission
C91.A2 Mature B-cell leukemia Burkitt-type, in relapse
C91.Z Other lymphoid leukemia
C91.Z0 Other lymphoid leukemia not having achieved remission
C91.Z1 Other lymphoid leukemia, in remission
C91.Z2 Other lymphoid leukemia, in relapse
This page was last updated on: 10/1/2025
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