Finger and toe deformities (including bunions)
Also known as: Acquired deformities of fingers or toes, unspecified
General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).
In short
Fingers and thumbs are used for activities ranging from grasping objects to playing musical instruments and typing, and problems with them can make life difficult. Common finger problems include injuries resulting in fractures, ruptured ligaments, and dislocations, as well as osteoarthritis, which is wear-and-tear arthritis that can cause deformity. Other common issues include tendinitis, Dupuytren's contracture, which causes the fingers to stiffen and bend, and trigger finger, which can cause the tendon to catch and release.
Source: MedlinePlus, National Library of Medicine.
AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.
Codes
Description
You use your fingers and thumbs to do everything from grasping objects to playing musical instruments to typing. When there is something wrong with them, it can make life difficult. Common problems include:
- Injuries that result in fractures (broken bones), ruptured ligaments and dislocations
- Osteoarthritis - wear-and-tear arthritis. It can also cause deformity.
- Tendinitis - irritation of the tendons
- Dupuytren's contracture - a hereditary thickening of the tough tissue that lies just below the skin of your palm. It causes the fingers to stiffen and bend.
- Trigger finger - an irritation of the sheath that surrounds the flexor tendons. It can cause the tendon to catch and release like a trigger.
Next to it in ICD-10
- M06Rheumatoid arthritis, serology unspecified
- M08Juvenile Arthritis
- M10Gout
- M22Kneecap disorders
- M23Internal knee problems (including meniscus damage)
- M30Polyarteritis nodosa
Neighbouring codes in the classification, not a medical link.
External resources
Questions
What is the ICD-10 code for Finger and toe deformities (including bunions)?
M20 (WHO, International Classification of Diseases, 10th Revision).
What is the ICD-11 code for Finger and toe deformities (including bunions)?
FA30.Z: Acquired deformities of fingers or toes, unspecified (WHO, ICD-11 for Mortality and Morbidity Statistics).
Sources and attribution
- ICD-11 for Mortality and Morbidity Statistics, © World Health Organization, licensed under CC BY-ND 3.0 IGO.
- Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
- Source: MedlinePlus, National Library of Medicine.
- ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).
Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →
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