ICD-10-CM > M00-M99 > M20-M25 > M21 > M21.0 > M21.07 M21.07 Valgus deformity, not elsewhere classified, ankle Non-Billable/Non-Specific Codes M21.071Valgus deformity, not elsewhere classified, right ankleM21.072Valgus deformity, not elsewhere classified, left ankleM21.079Valgus deformity, not elsewhere classified, unspecified ankle