M21.7 is the ICD-10 code for Unequal limb length (acquired). It is a four-character subcategory of M21 (Other acquired deformities of limbs), the most specific level in the WHO edition. It belongs to the block M20–M25 (Other joint disorders) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.
- Code type
- Subcategory (4 characters)
- Chapter
- XIII · M00–M99
- Classification
- WHO ICD-10, 2019 version
M21.7 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
M21.7Förvärvad olikhet i extremiteternas längd
- M21.7FBenlängdsskillnad i lårben
- M21.7GBenlängdsskillnad i underben
- M21.7XBenlängdsskillnad, ospecificerad
M21.7Ervervet ulik lengde på ekstremiteter
DM217Erhvervet anisomeli
M21.7Raajojen (hankinnainen) eripituisuus
M21.7Unterschiedliche Extremitätenlänge (erworben)
M21.7Inégalité des membres (acquise)
M21.7ongelijke lengte van extremiteit (verworven)
Listed through more specific codes:
- M21.70Unequal limb length (acquired), unspecified site
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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