ICD-10-CM > M00-M99 > M15-M19 > M19 > M19.0 > M19.01 M19.01 Primary osteoarthritis, shoulder Non-Billable/Non-Specific Codes M19.011Primary osteoarthritis, right shoulderM19.012Primary osteoarthritis, left shoulderM19.019Primary osteoarthritis, unspecified shoulder