ICD-10-CM>Q00-QA1>Q65-Q79>Q66>Q66.3Q66.3Other congenital varus deformities of feetNon-Billable/Non-SpecificApplicable ToHallux varus, congenitalCodesQ66.30Other congenital varus deformities of feet, unspecified footQ66.31Other congenital varus deformities of feet, right footQ66.32Other congenital varus deformities of feet, left foot