ICD-10 codes for Leukemia
Leukemia is coded primarily under C91, C92, C93 in the ICD-10-CM (Clinical Modification) classification. Top-level categories include C91 (Lymphoid leukemia); C92 (Myeloid leukemia); C93 (Monocytic leukemia); C94 (Other leukemias of specified cell type). The 2025 ICD-10-CM code set includes 134 codes related to leukemia, of which 97 are billable (specific enough to appear on a medical claim).
Leukemias are coded under C91 (lymphoid), C92 (myeloid), C93 (monocytic), C94 (other leukemias of specified cell type), and C95 (unspecified cell type). Each block has subcodes for whether the disease is in remission, relapse, or no known remission status. Z85.6 is personal history of leukemia.
Total Codes
134
Billable Codes
97
Categories
5
SNOMED CT Concepts
25+
Top 12 Relevant ICD-10 Codes
The codes most commonly assigned to leukemia, ranked by primary-match status, billable status, and specificity. Tap a code to see its full ICD-10 detail page.
C91Lymphoid leukemia
C92Myeloid leukemia
C93Monocytic leukemia
C94Other leukemias of specified cell type
C95Leukemia of unspecified cell type
C94.6Myelodysplastic disease, not elsewhere classified
C91.00Acute lymphoblastic leukemia not having achieved remission
C91.01Acute lymphoblastic leukemia, in remission
C91.02Acute lymphoblastic leukemia, in relapse
C91.10Chronic lymphocytic leuk of B-cell type not achieve remis
C91.11Chronic lymphocytic leukemia of B-cell type in remission
C91.12Chronic lymphocytic leukemia of B-cell type in relapse
Primary Code Categories
These are the top-level ICD-10-CM categories for leukemia. Click any code to see all specific subcodes within that group.
Billable / Specific Codes (97)
Specific ICD-10-CM codes that can be reported on medical claims for leukemia.
C91.00Acute lymphoblastic leukemia not having achieved remission
C91.01Acute lymphoblastic leukemia, in remission
C91.02Acute lymphoblastic leukemia, in relapse
C91.10Chronic lymphocytic leuk of B-cell type not achieve remis
C91.11Chronic lymphocytic leukemia of B-cell type in remission
C91.12Chronic lymphocytic leukemia of B-cell type in relapse
C91.30Prolymphocytic leukemia of B-cell type not achieve remission
C91.31Prolymphocytic leukemia of B-cell type, in remission
C91.32Prolymphocytic leukemia of B-cell type, in relapse
C91.40Hairy cell leukemia not having achieved remission
C91.41Hairy cell leukemia, in remission
C91.42Hairy cell leukemia, in relapse
C91.50Adult T-cell lymph/leuk (HTLV-1-assoc) not achieve remission
C91.51Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in remission
C91.52Adult T-cell lymphoma/leukemia (HTLV-1-assoc), in relapse
C91.60Prolymphocytic leukemia of T-cell type not achieve remission
C91.61Prolymphocytic leukemia of T-cell type, in remission
C91.62Prolymphocytic leukemia of T-cell type, in relapse
C91.90Lymphoid leukemia, unspecified not having achieved remission
C91.91Lymphoid leukemia, unspecified, in remission
C91.92Lymphoid leukemia, unspecified, in relapse
C91.A0Mature B-cell leukemia Burkitt-type not achieve remission
C91.A1Mature B-cell leukemia Burkitt-type, in remission
C91.A2Mature B-cell leukemia Burkitt-type, in relapse
C91.Z0Other lymphoid leukemia not having achieved remission
C91.Z1Other lymphoid leukemia, in remission
C91.Z2Other lymphoid leukemia, in relapse
C92.00Acute myeloblastic leukemia, not having achieved remission
C92.01Acute myeloblastic leukemia, in remission
C92.02Acute myeloblastic leukemia, in relapse
C92.10Chronic myeloid leuk, BCR/ABL-positive, not achieve remis
C92.11Chronic myeloid leukemia, BCR/ABL-positive, in remission
C92.12Chronic myeloid leukemia, BCR/ABL-positive, in relapse
C92.20Atyp chronic myeloid leuk, BCR/ABL-neg, not achieve remis
C92.21Atypical chronic myeloid leukemia, BCR/ABL-neg, in remission
C92.22Atypical chronic myeloid leukemia, BCR/ABL-neg, in relapse
C92.30Myeloid sarcoma, not having achieved remission
C92.31Myeloid sarcoma, in remission
C92.32Myeloid sarcoma, in relapse
C92.40Acute promyelocytic leukemia, not having achieved remission
C92.41Acute promyelocytic leukemia, in remission
C92.42Acute promyelocytic leukemia, in relapse
C92.50Acute myelomonocytic leukemia, not having achieved remission
C92.51Acute myelomonocytic leukemia, in remission
C92.52Acute myelomonocytic leukemia, in relapse
C92.60Acute myeloid leukemia w 11q23-abnormality not achieve remis
C92.61Acute myeloid leukemia with 11q23-abnormality in remission
C92.62Acute myeloid leukemia with 11q23-abnormality in relapse
C92.90Myeloid leukemia, unspecified, not having achieved remission
C92.91Myeloid leukemia, unspecified in remission
...and 47 more specific codes. Search all codes.
Cross-Mappings to Other Standards
ICD-10-CM codes for leukemia link to several adjacent terminologies. These mappings are precomputed from official sources (NLM RxNav, UMLS Metathesaurus, SNOMED CT International) and served via AutoICD's reference and translate APIs.
SNOMED CT
25+ concepts mapped from this code group. Concept IDs include 277571004, 277572006, 277573001, 277574007, ....
Browse SNOMED CT directoryUMLS Metathesaurus
25+ CUIs indexed. Sample: C0023448, C0023449, C2854086, C2854087, ....
Browse UMLS directoryICD-11
ICD-11 (WHO 2022) classifies many of these conditions under different chapter and stem-code structures. Use the converter to see specific ICD-10 to ICD-11 mappings.
Open ICD-10 to ICD-11 converterFrequently Asked Questions
What is the ICD-10 code for leukemia?
The primary ICD-10-CM codes for leukemia are C91, C92, C93. Across all sub-categories, 134 codes are grouped under leukemia, with 97 marked as billable (specific enough for a medical claim).
How many ICD-10 codes are there for leukemia?
There are 134 ICD-10-CM codes related to leukemia. Of these, 97 are billable specific codes and 37 are non-billable header categories that organize the specific codes underneath them. Header codes cannot be reported on a claim by themselves.
Is there a billable ICD-10 code for leukemia?
Yes. 97 of the 134 ICD-10-CM codes for leukemia are billable. Common examples include C91.00 (Acute lymphoblastic leukemia not having achieved remission); C91.01 (Acute lymphoblastic leukemia, in remission); C91.02 (Acute lymphoblastic leukemia, in relapse). Code to the highest level of specificity supported by the documentation.
Which leukemia ICD-10 code should I use for billing?
The most commonly used billable codes for leukemia include: C91.00 (Acute lymphoblastic leukemia not having achieved remission); C91.01 (Acute lymphoblastic leukemia, in remission); C91.02 (Acute lymphoblastic leukemia, in relapse). The correct code depends on the documented clinical presentation, including any complications, episode (acute / chronic), and laterality where applicable. Always code to the highest level of specificity supported by the clinical documentation.
Is C91 a billable ICD-10 code?
No, C91 (Lymphoid leukemia) is a non-billable header code. You need to use a more specific child code for billing purposes.
What are the SNOMED CT concepts for leukemia?
The ICD-10 codes for leukemia map to at least 25 SNOMED CT concepts. Examples of SNOMED CT concept IDs in this group include 277571004, 277572006, 277573001, 277574007, 277575008. SNOMED CT is a clinical terminology used in electronic health records; AutoICD's coding API returns SNOMED CT IDs alongside each ICD-10 code via the include_snomed=true flag.
What UMLS Concept Unique Identifiers (CUIs) cover leukemia?
The ICD-10 codes for leukemia are linked to at least 25 UMLS CUIs in the National Library of Medicine's Metathesaurus. Sample CUIs include C0023448, C0023449, C2854086, C2854087, C0153876. UMLS CUIs unify the same concept across SNOMED CT, ICD-10, ICD-11, RxNorm, MeSH, and dozens of other source vocabularies.
What are other names for leukemia in ICD-10?
Leukemia may also be referred to as: leukemia, lymphocytic leukemia, myeloid leukemia, AML, ALL, CLL, CML. The same ICD-10-CM codes apply regardless of which term appears in the clinical documentation. Synonyms are surfaced by AutoICD's NER pass and mapped to the canonical ICD-10 family above.
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