Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

Internal Codes
  • C88.40

    Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue [MALT-lymphoma] not having achieved remission

  • C88.41

    Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue [MALT-lymphoma], in remission

  • C88.80

    Other malignant immunoproliferative diseases not having achieved remission

  • C88.81

    Other malignant immunoproliferative diseases, in remission

  • C88.90

    Malignant immunoproliferative disease, unspecified not having achieved remission

  • C88.91

    Malignant immunoproliferative disease, unspecified, in remission

  • C90.00

    Multiple myeloma not having achieved remission

  • C90.01

    Multiple myeloma in remission

  • C90.02

    Multiple myeloma in relapse

  • C90.10

    Plasma cell leukemia not having achieved remission

  • C90.11

    Plasma cell leukemia in remission

  • C90.12

    Plasma cell leukemia in relapse

  • C90.20

    Extramedullary plasmacytoma not having achieved remission

  • C90.21

    Extramedullary plasmacytoma in remission

  • C90.22

    Extramedullary plasmacytoma in relapse

  • C90.30

    Solitary plasmacytoma not having achieved remission

  • C90.31

    Solitary plasmacytoma in remission

  • C90.32

    Solitary plasmacytoma in relapse

  • C91.00

    Acute lymphoblastic leukemia not having achieved remission

  • C91.01

    Acute lymphoblastic leukemia, in remission

  • C91.02

    Acute lymphoblastic leukemia, in relapse

  • 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

  • C91.30

    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

  • C91.40

    Hairy cell leukemia not having achieved remission

  • C91.41

    Hairy cell leukemia, in remission

  • C91.42

    Hairy cell leukemia, in relapse

  • 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

  • C91.60

    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

  • C91.90

    Lymphoid leukemia, unspecified not having achieved remission

  • C91.91

    Lymphoid leukemia, unspecified, in remission

  • C91.92

    Lymphoid leukemia, unspecified, in relapse

  • 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.Z0

    Other lymphoid leukemia not having achieved remission

  • C91.Z1

    Other lymphoid leukemia, in remission

  • C91.Z2

    Other lymphoid leukemia, in relapse

  • C92.00

    Acute myeloblastic leukemia, not having achieved remission

  • C92.01

    Acute myeloblastic leukemia, in remission

  • C92.02

    Acute myeloblastic leukemia, in relapse

  • C92.10

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

  • C92.11

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

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