ICD-10 Code for Leukemia
The ICD-10-CM code for leukemia is C95.9 — Leukemia, unspecified. This is the code the Alphabetic Index gives for leukemia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
Not billable
C95.9 cannot be submitted on a claim. It is a header code, so a more specific code from the list below is required.
Which leukemia code should you use?
The Alphabetic Index lists 32 codes under Leukemia, leukemic. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| acute basophilic | C94.8Not billable | Other specified leukemias |
| acute bilineal | C95.0Not billable | Acute leukemia of unspecified cell type |
| acute erythroid | C94.0Not billable | Acute erythroid leukemia |
| acute lymphoblastic | C91.0Not billable | Acute lymphoblastic leukemia [ALL] |
| acute megakaryoblastic | C94.2Not billable | Acute megakaryoblastic leukemia |
| acute megakaryocytic | C94.2Not billable | Acute megakaryoblastic leukemia |
| acute mixed lineage | C95.0Not billable | Acute leukemia of unspecified cell type |
| acute monoblastic | C93.0Not billable | Acute monoblastic/monocytic leukemia |
| acute monocytic | C93.0Not billable | Acute monoblastic/monocytic leukemia |
| acute myeloblastic | C92.0Not billable | Acute myeloblastic leukemia |
| acute myeloid, NOS | C92.0Not billable | Acute myeloblastic leukemia |
| acute myelomonocytic | C92.5Not billable | Acute myelomonocytic leukemia |
| acute promyelocytic | C92.4Not billable | Acute promyelocytic leukemia |
| adult T-cell | C91.5Not billable | Adult T-cell lymphoma/leukemia (HTLV-1-associated) |
| aggressive NK-cell | C94.8Not billable | Other specified leukemias |
| AML | C92.0Not billable | Acute myeloblastic leukemia |
| AML M3 | C92.4Not billable | Acute promyelocytic leukemia |
| AML M4 | C92.5Not billable | Acute myelomonocytic leukemia |
| AML M5 | C93.0Not billable | Acute monoblastic/monocytic leukemia |
| AML M5a | C93.0Not billable | Acute monoblastic/monocytic leukemia |
| AML M5b | C93.0Not billable | Acute monoblastic/monocytic leukemia |
| AML Me with t and variants | C92.4Not billable | Acute promyelocytic leukemia |
| atypical chronic myeloid, BCR/ABL-negative | C92.2Not billable | Atypical chronic myeloid leukemia, BCR/ABL-negative |
| biphenotypic acute | C95.0Not billable | Acute leukemia of unspecified cell type |
| blast cell | C95.0Not billable | Acute leukemia of unspecified cell type |
| Burkitt-type, mature B-cell | C91.ANot billable | Mature B-cell leukemia Burkitt-type |
| chronic eosinophilic | C94.8Not billable | Other specified leukemias |
| chronic lymphocytic, of B-cell type | C91.1Not billable | Chronic lymphocytic leukemia of B-cell type |
| chronic monocytic | C93.1Not billable | Chronic myelomonocytic leukemia |
| chronic myelogenous | C92.1Not billable | Chronic myeloid leukemia, BCR/ABL-positive |
| chronic myeloid, BCR/ABL-positive | C92.1Not billable | Chronic myeloid leukemia, BCR/ABL-positive |
| chronic myelomonocytic | C93.1Not billable | Chronic myelomonocytic leukemia |
| chronic neutrophilic | D47.1 | Chronic myeloproliferative disease |
| CMML | C93.1Not billable | Chronic myelomonocytic leukemia |
| granulocytic | C92.9Not billable | Myeloid leukemia, unspecified |
| hairy cell | C91.4Not billable | Hairy cell leukemia |
| juvenile myelomonocytic | C93.3Not billable | Juvenile myelomonocytic leukemia |
| lymphoid | C91.9Not billable | Lymphoid leukemia, unspecified |
| mast cell | C94.3Not billable | Mast cell leukemia |
| mature B-cell, Burkitt-type | C91.ANot billable | Mature B-cell leukemia Burkitt-type |
| monocytic | C93.9Not billable | Monocytic leukemia, unspecified |
| myelogenous | C92.9Not billable | Myeloid leukemia, unspecified |
| myeloid | C92.9Not billable | Myeloid leukemia, unspecified |
| plasma cell | C90.1Not billable | Plasma cell leukemia |
| plasmacytic | C90.1Not billable | Plasma cell leukemia |
| specified NEC | C94.8Not billable | Other specified leukemias |
| stem cell, of unclear lineage | C95.0Not billable | Acute leukemia of unspecified cell type |
| subacute lymphocytic | C91.9Not billable | Lymphoid leukemia, unspecified |
| T-cell large granular lymphocytic | C91.ZNot billable | Other lymphoid leukemia |
| unspecified cell type | C95.9Not billable | Leukemia, unspecified |
Leukemia acute myeloid, NOS
| M6 | C94.0Not billable | Acute erythroid leukemia |
| M7 | C94.2Not billable | Acute megakaryoblastic leukemia |
| with › 11q23-abnormality | C92.6Not billable | Acute myeloid leukemia with 11q23-abnormality |
| with › dysplasia of remaining hematopoesis and/or myelodysplastic disease in its history | C92.ANot billable | Acute myeloid leukemia with multilineage dysplasia |
| with › multilineage dysplasia | C92.ANot billable | Acute myeloid leukemia with multilineage dysplasia |
| with › variation of MLL-gene | C92.6Not billable | Acute myeloid leukemia with 11q23-abnormality |
Leukemia chronic myeloid, BCR/ABL-positive
| atypical, BCR/ABL-negative | C92.2Not billable | Atypical chronic myeloid leukemia, BCR/ABL-negative |
Leukemia lymphoid
| specified NEC | C91.ZNot billable | Other lymphoid leukemia |
Leukemia monocytic
| specified NEC | C93.ZNot billable | Other monocytic leukemia |
Leukemia myeloid
Leukemia prolymphocytic
Codes under C95.9
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources