ICD-10-CM > M00-M99 > M86-M90 > M89 > M89.0 > M89.05 M89.05 Algoneurodystrophy, thigh Non-Billable/Non-Specific Codes M89.051Algoneurodystrophy, right thighM89.052Algoneurodystrophy, left thighM89.059Algoneurodystrophy, unspecified thigh