ICD-10-CM > M00-M99 > M20-M25 > M20 > M20.3 M20.3 Hallux varus (acquired) Non-Billable/Non-Specific Codes M20.30Hallux varus (acquired), unspecified footM20.31Hallux varus (acquired), right footM20.32Hallux varus (acquired), left foot