Abnormality Of Lower Limb Joint C4020971
A condition affecting the joints of the hip, knee, ankle, or foot. May be present from birth or develop over time. Treatment varies based on the specific joint and underlying cause.
Key facts at a glance
- ICD-10
- M79.9
- ICD-11
- FA00.0
- Body system
- musculoskeletal
- Severity
- mild
- Chronic
- true
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy