ICD-10-CM > M00-M99 > M80-M85 > M85 > M85.6 > M85.65 M85.65 Other cyst of bone, thigh Non-Billable/Non-Specific Codes M85.651Other cyst of bone, right thighM85.652Other cyst of bone, left thighM85.659Other cyst of bone, unspecified thigh