ICD-10-CM > M00-M99 > M15-M19 > M15 M15 Polyosteoarthritis Non-Billable/Non-Specific Includes arthritis of multiple sites Type 1 Excludes bilateral involvement of single joint (M16-M19) Codes M15.0Primary generalized (osteo)arthritisM15.1Heberden's nodes (with arthropathy)M15.2Bouchard's nodes (with arthropathy)M15.3Secondary multiple arthritisM15.4Erosive (osteo)arthritisM15.8Other polyosteoarthritisM15.9Polyosteoarthritis, unspecified