ICD-10-CM diagnosis code
C91.92 Lymphoid leukemia, unspecified, in relapse
- Billable
- Yes, a complete code (FY2026)
- Category
- C91 Lymphoid leukaemia
- Chapter
- 2. Neoplasms
Documenting C91.92? Write the note in seconds
Paste your rough notes and get a structured SOAP note. Free, no account needed.
Other codes in C91
27 complete codes in this category.
- C91.52Adult T-cell lymphoma/leukemia (HTLV-1-associated), in relapse
- C91.60Prolymphocytic leukemia of T-cell type not having achieved 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 having achieved 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
Documentation tips
- Make sure the note supports every element of the title, “Lymphoid leukemia, unspecified, in relapse”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to C91.
The international WHO ICD-10 also has C91, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free