Clubfoot and Congenital Foot Deformities ICD-10-CM codes

True congenital clubfoot, talipes equinovarus, is Q66.0- with laterality in the fifth character: Q66.00 unspecified foot, Q66.01 right, Q66.02 left. There is no bilateral code, so bilateral clubfoot is reported with both Q66.01 and Q66.02. Be aware that the index sends the bare term clubfoot to Q66.89 (other specified congenital deformities of feet); only equinovarus documented by the provider goes to Q66.0-, so query when the deformity type is not stated.

The rest of Q66 covers the other congenital deformities: Q66.1- talipes calcaneovarus, Q66.2- metatarsus varus and adductus (Q66.21- metatarsus primus varus, Q66.22- metatarsus adductus), Q66.3- other varus deformities, Q66.4- talipes calcaneovalgus, Q66.5- congenital pes planus, Q66.6 other valgus deformities, Q66.7- pes cavus, Q66.8- vertical talus and other specified deformities, and Q66.9- unspecified. Most subcategories carry laterality.

Acquired or positional clubfoot is not congenital and is coded to M21.54- (M21.541 right foot). Serial casting visits under the Ponseti method keep the Q66.0- code; there is no aftercare Z code for congenital deformities. Q codes may be reported at any age while the deformity remains.