C91.9 is the ICD-10 code for Lymphoid leukaemia, unspecified. It is a four-character subcategory of C91 (Lymphoid leukaemia), the most specific level in the WHO edition. It belongs to the block C81–C96 (Malignant neoplasms, stated or presumed to be primary, of lymphoid, haematopoietic and related tissue) in Chapter II, Neoplasms.
- Code type
- Subcategory (4 characters)
- Chapter
- II · C00–D48
- Classification
- WHO ICD-10, 2019 version
C91.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
C91.9Uspesifisert lymfoid leukemi
DC919Lymfatisk leukæmi UNS
C91.9Määrittämätön lymfaattinen leukemia
C91.9Lymphatische Leukämie, nicht näher bezeichnet
C91.9Leucémie lymphoïde, sans précision
C91.9lymfatische leukemie, niet-gespecificeerd
Listed through more specific codes:
- C91.90Lymphoid leukemia, unspecified not having achieved remission
- C91.91Lymphoid leukemia, unspecified, in remission
- C91.92Lymphoid leukemia, unspecified, in relapse
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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