ICD-10-CM > M00-M99 > M80-M85 > M85 > M85.3 > M85.33 M85.33 Osteitis condensans, forearm Non-Billable/Non-Specific Codes M85.331Osteitis condensans, right forearmM85.332Osteitis condensans, left forearmM85.339Osteitis condensans, unspecified forearm