LB77 Hyperphalangy

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

Hyperphalangy is a congenital, non-syndromic limb malformation characterized by the presence of an accessory phalanx between metacarpal/metatarsal and proximal phalanx, or between any two other phalanges of a digit, excluding the thumb. Hypherphalangy is almost always bilateral and patients present no more than five digits and no other skeletal anomalies.

postcoordination

synonyms

• Hyperphalangy
• Hyperphalangy, unilateral
• Hyperphalangy, bilateral

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