Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

Internal Codes
  • 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

  • C92

    Myeloid leukemia

  • C92.0

    Acute myeloblastic leukemia

  • C92.00

    Acute myeloblastic leukemia, not having achieved remission

  • C92.01

    Acute myeloblastic leukemia, in remission

  • C92.02

    Acute myeloblastic leukemia, in relapse

  • C92.1

    Chronic myeloid leukemia, BCR/ABL-positive

  • C92.10

    Chronic myeloid leukemia, BCR/ABL-positive, not having achieved remission

  • C92.11

    Chronic myeloid leukemia, BCR/ABL-positive, in remission

  • C92.12

    Chronic myeloid leukemia, BCR/ABL-positive, in relapse

  • C92.2

    Atypical chronic myeloid leukemia, BCR/ABL-negative

  • C92.20

    Atypical chronic myeloid leukemia, BCR/ABL-negative, not having achieved remission

  • C92.21

    Atypical chronic myeloid leukemia, BCR/ABL-negative, in remission

  • C92.22

    Atypical chronic myeloid leukemia, BCR/ABL-negative, in relapse

  • C92.3

    Myeloid sarcoma

  • C92.30

    Myeloid sarcoma, not having achieved remission

  • C92.31

    Myeloid sarcoma, in remission

  • C92.32

    Myeloid sarcoma, in relapse

  • C92.4

    Acute promyelocytic leukemia

  • C92.40

    Acute promyelocytic leukemia, not having achieved remission

  • C92.41

    Acute promyelocytic leukemia, in remission

  • C92.42

    Acute promyelocytic leukemia, in relapse

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