ICD-10-CM > Q00-QA0 > Q65-Q79 > Q66 > Q66.2 Q66.2 Congenital metatarsus (primus) varus Non-Billable/Non-Specific Codes Q66.21Congenital metatarsus primus varusQ66.211Congenital metatarsus primus varus, right footQ66.212Congenital metatarsus primus varus, left footQ66.219Congenital metatarsus primus varus, unspecified footQ66.22Congenital metatarsus adductusQ66.221Congenital metatarsus adductus, right footQ66.222Congenital metatarsus adductus, left footQ66.229Congenital metatarsus adductus, unspecified foot