ICD-10-CM > M00-M99 > M80-M85 > M85 > M85.1 > M85.15 M85.15 Skeletal fluorosis, thigh Non-Billable/Non-Specific Codes M85.151Skeletal fluorosis, right thighM85.152Skeletal fluorosis, left thighM85.159Skeletal fluorosis, unspecified thigh