C91.0 is the ICD-10 code for Acute lymphoblastic leukaemia [ALL]. 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
Coding notes
- This code should only be used for T-cell and B-cell precursor leukeamia
C91.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
C91.0Akut lymfatisk leukemi [ALL]
- C91.0AAkut lymfatisk leukemi (T-ALL)
- C91.0BAkut lymfatisk leukemi (pre-B-ALL, B-ALL)
C91.0Akutt lymfoblastisk leukemi
DC910Akut lymfoblastær leukæmi (ALL)
C91.0Akuutti lymfoblastileukemia
C91.0Akute lymphatische Leukämie [ALL]
C91.0Leucémie lymphoblastique aigüe [LLA]
C91.0acute lymfoblastenleukemie [ALL]
Listed through more specific codes:
- C91.00Acute lymphoblastic leukemia not having achieved remission
- C91.01Acute lymphoblastic leukemia, in remission
- C91.02Acute lymphoblastic leukemia, 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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