ICD-10-CM 2027
ICD-10 code for leukemia
From the official ICD-10-CM alphabetic index entry “Leukemia, leukemic”. Page updated September 29, 2026.
About coding leukemia
The ICD-10-CM code for leukemia is C95.9 (Leukemia, unspecified). The official index lists 65 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on C95.9.
Within C95, choose C95.9 (Leukemia, unspecified) only when documentation doesn't support a more specific option: acute leukemia of unspecified cell type (C95.0) and chronic leukemia of unspecified cell type (C95.1).
To report this condition, pick the subcode that matches the documentation: C95.90 (not having achieved remission), C95.91 (in remission) and C95.92 (in relapse).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific leukemia codes (official index)
- acute basophilic C94.8 — Other specified leukemias
- acute bilineal C95.0 — Acute leukemia of unspecified cell type
- acute erythroid C94.0 — Acute erythroid leukemia
- acute lymphoblastic C91.0 — Acute lymphoblastic leukemia [ALL]
- acute megakaryoblastic C94.2 — Acute megakaryoblastic leukemia
- acute megakaryocytic C94.2 — Acute megakaryoblastic leukemia
- acute mixed lineage C95.0 — Acute leukemia of unspecified cell type
- acute monoblastic (monoblastic/monocytic) C93.0 — Acute monoblastic/monocytic leukemia
- acute monocytic (monoblastic/monocytic) C93.0 — Acute monoblastic/monocytic leukemia
- acute myeloblastic (minimal differentiation) (with maturation) C92.0 — Acute myeloblastic leukemia
- acute myeloid, NOS C92.0 — Acute myeloblastic leukemia
- with
- 11q23-abnormality C92.6 — Acute myeloid leukemia with 11q23-abnormality
- dysplasia of remaining hematopoesis and/or myelodysplastic disease in its history C92.A — Acute myeloid leukemia with multilineage dysplasia
- multilineage dysplasia C92.A — Acute myeloid leukemia with multilineage dysplasia
- variation of MLL-gene C92.6 — Acute myeloid leukemia with 11q23-abnormality
- M6 (a)(b) C94.0 — Acute erythroid leukemia
- M7 C94.2 — Acute megakaryoblastic leukemia
- acute myelomonocytic C92.5 — Acute myelomonocytic leukemia
- acute promyelocytic C92.4 — Acute promyelocytic leukemia
- adult T-cell (HTLV-1-associated) (acute variant) (chronic variant) (lymphomatoid variant) (smouldering variant) C91.5 — Adult T-cell lymphoma/leukemia (HTLV-1-associated)
- aggressive NK-cell C94.8 — Other specified leukemias
- AML (1/ETO) (M0) (M1) (M2) (without a FAB classification) C92.0 — Acute myeloblastic leukemia
- AML M3 C92.4 — Acute promyelocytic leukemia
- AML M4 (Eo with inv(16) or t(16;16)) C92.5 — Acute myelomonocytic leukemia
- AML M5 C93.0 — Acute monoblastic/monocytic leukemia
- AML M5a C93.0 — Acute monoblastic/monocytic leukemia
- AML M5b C93.0 — Acute monoblastic/monocytic leukemia
- AML Me with t (15;17) and variants C92.4 — Acute promyelocytic leukemia
- atypical chronic myeloid, BCR/ABL-negative C92.2 — Atypical chronic myeloid leukemia, BCR/ABL-negative
- biphenotypic acute C95.0 — Acute leukemia of unspecified cell type
- blast cell C95.0 — Acute leukemia of unspecified cell type
- Burkitt-type, mature B-cell C91.A — Mature B-cell leukemia Burkitt-type
- chronic eosinophilic C94.8 — Other specified leukemias
- chronic lymphocytic, of B-cell type C91.1 — Chronic lymphocytic leukemia of B-cell type
- chronic monocytic C93.1 — Chronic myelomonocytic leukemia
- chronic myelogenous (Philadelphia chromosome (Ph1) positive) (t(9;22)) (q34;q11) (with crisis of blast cells) C92.1 — Chronic myeloid leukemia, BCR/ABL-positive
- chronic myeloid, BCR/ABL-positive C92.1 — Chronic myeloid leukemia, BCR/ABL-positive
- atypical, BCR/ABL-negative C92.2 — Atypical chronic myeloid leukemia, BCR/ABL-negative
- chronic myelomonocytic C93.1 — Chronic myelomonocytic leukemia
- chronic neutrophilic D47.1 — Chronic myeloproliferative disease
- CMML (-1) (-2) (with eosinophilia) C93.1 — Chronic myelomonocytic leukemia
- granulocytic C92.9 — Myeloid leukemia, unspecified
- hairy cell C91.4 — Hairy cell leukemia
- juvenile myelomonocytic C93.3 — Juvenile myelomonocytic leukemia
- lymphoid C91.9 — Lymphoid leukemia, unspecified
- specified NEC C91.Z — Other lymphoid leukemia
- mast cell C94.3 — Mast cell leukemia
- mature B-cell, Burkitt-type C91.A — Mature B-cell leukemia Burkitt-type
- monocytic (subacute) C93.9 — Monocytic leukemia, unspecified
- specified NEC C93.Z — Other monocytic leukemia
- myelogenous C92.9 — Myeloid leukemia, unspecified
- myeloid C92.9 — Myeloid leukemia, unspecified
- acute C92.0 — Acute myeloblastic leukemia
- specified NEC C92.Z — Other myeloid leukemia
- plasma cell C90.1 — Plasma cell leukemia
- plasmacytic C90.1 — Plasma cell leukemia
- prolymphocytic
- of B-cell type C91.3 — Prolymphocytic leukemia of B-cell type
- of T-cell type C91.6 — Prolymphocytic leukemia of T-cell type
- specified NEC C94.8 — Other specified leukemias
- stem cell, of unclear lineage C95.0 — Acute leukemia of unspecified cell type
- subacute lymphocytic C91.9 — Lymphoid leukemia, unspecified
- T-cell large granular lymphocytic C91.Z — Other lymphoid leukemia
- unspecified cell type C95.9 — Leukemia, unspecified
- acute C95.0 — Acute leukemia of unspecified cell type
- chronic C95.1 — Chronic leukemia of unspecified cell type
Common questions about leukemia ICD-10 codes
What is the ICD-10 code for leukemia?
- C95.9 — Leukemia, unspecified (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: C94.8, C95.0, C94.0, C91.0 and others below.
What is the ICD-10 code for acute basophilic leukemia?
- C94.8 — Other specified leukemias (header code; choose a more specific subcode).
What is the ICD-10 code for acute bilineal leukemia?
- C95.0 — Acute leukemia of unspecified cell type (header code; choose a more specific subcode).
What is the ICD-10 code for acute erythroid leukemia?
- C94.0 — Acute erythroid leukemia (header code; choose a more specific subcode).
What is the ICD-10 code for acute lymphoblastic leukemia?
- C91.0 — Acute lymphoblastic leukemia [ALL] (header code; choose a more specific subcode).
What is the ICD-10 code for acute megakaryoblastic leukemia?
- C94.2 — Acute megakaryoblastic leukemia (header code; choose a more specific subcode).
What is the ICD-10 code for acute megakaryocytic leukemia?
- C94.2 — Acute megakaryoblastic leukemia (header code; choose a more specific subcode).
Is C95.9 billable?
- No. C95.9 is a header code. Report one of its more specific subcodes instead.