From parent levels

ChapterXVIICongenital malformations, deformations and chromosomal abnormalitiesOpen

Exclusions

inborn errors of metabolism (E70-E90)

BlockQ65-Q79Congenital malformations and deformations of the musculoskeletal systemOpen

CategoryQ66Congenital deformities of feetOpen

Exclusions

reduction defects of feet (Q72.-)
valgus deformities (acquired) (M21.0)
varus deformities (acquired) (M21.1)

Q66.5

CategoryBlock Q65-Q79 Chapter XVII

Congenital pes planus

Inclusions

Flat foot: congenital
Flat foot: rigid
Flat foot: spastic (everted)

Parent: Q66 Congenital deformities of feet