M20.3 is the ICD-10 code for Other deformity of hallux (acquired). It is a four-character subcategory of M20 (Acquired deformities of fingers and toes), 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
What M20.3 includes
Conditions and terms that are coded here.
- Hallux varus
M20.3 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
M20.3Annen ervervet stortådeformitet
DM203Anden erhvervet deformitet af storetå
- DM203AHallux varus
- DM203BHammertå på storetå
- DM203CHallux flexus acquisitus
M20.3Muu isovarpaan [hankinnainen] epämuotoisuus
M20.3Sonstige Deformität der Großzehe (erworben)
M20.3Autres déformations du gros orteil
M20.3overige misvorming van hallux (verworven)
Listed through more specific codes:
- M20.30Hallux varus (acquired), unspecified foot
- M20.31Hallux varus (acquired), right foot
- M20.32Hallux varus (acquired), left foot
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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