M91 is the ICD-10 code for Juvenile osteochondrosis of hip and pelvis. It is a three-character category divided into 6 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block M91–M94 (Chondropathies) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.
- Code type
- Category (3 characters)
- Chapter
- XIII · M00–M99
- Classification
- WHO ICD-10, 2019 version
What M91 excludes
Conditions that look similar but belong under another code.
- slipped upper femoral epiphysis (nontraumatic) M93.0
Subcodes of M91
M91 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
M91Juvenil osteokondros (ben-broskdegeneration hos unga) i höft och bäcken
DM91Brusklidelse i hofte og bækken hos unge
M91Lasten lonkkanivelen ja lantion osteokondroosi
M91Juvenile Osteochondrose der Hüfte und des Beckens
M91Ostéochondrite juvénile de la hanche et du bassin
M91juveniele osteochondrose van heup en bekken
Listed through more specific codes:
- M91.40Coxa magna, unspecified hip
- M91.41Coxa magna, right hip
- M91.42Coxa magna, left hip
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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