Catalog
Anonychia or onychodystrophy – hypoplasia or absence of distal phalanges
No MMS code
Link to WHO Definition
Anonychia or onychodystrophy – hypoplasia or absence of distal phalanges – http://id.who.int/icd/entity/1806277234
Cooks syndrome is characterised by nail anomalies ranging from onychodystrophy (dystrophic nails) to anonychia (absence of nails), associated with brachydactyly of the fifth finger, and digitalization of the thumbs (triphalangism).