Q66.8Other congenital deformities of feet

Q66.8 is the ICD-10-CM diagnosis code for other congenital deformities of feet. It belongs to category Q66 (congenital deformities of feet), block Q65-Q79 (congenital malformations and deformations of the musculoskeletal system) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within Q66, choose Q66.8 (Other congenital deformities of feet) only when documentation doesn't support a more specific option: congenital talipes equinovarus (Q66.0), congenital talipes calcaneovarus (Q66.1), congenital metatarsus (primus) varus (Q66.2), other congenital varus deformities of feet (Q66.3), congenital talipes calcaneovalgus (Q66.4), congenital pes planus (Q66.5), other congenital valgus deformities of feet (Q66.6), congenital pes cavus (Q66.7) and 1 more.

To report this condition, pick the subcode that matches the documentation: Q66.80 (foot), Q66.81 (foot), Q66.82 (foot) and Q66.89 (feet).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.