Oth rheu arthritis w rheumatoid factor of unsp shoulder

This code signifies a form of rheumatoid arthritis affecting an unspecified shoulder joint, where the presence of rheumatoid factor (RF) has been confirmed, but the specific type of "other" rheumatoid arthritis is not further specified. It indicates a seropositive, chronic inflammatory autoimmune condition primarily impacting the synovial lining of the joint.

Apply this code when documentation confirms seropositive rheumatoid arthritis impacting the shoulder, but the specific subtype of rheumatoid arthritis (e.g., with organ involvement, juvenile onset) is not detailed. This code is appropriate when the physician's diagnosis explicitly states "other rheumatoid arthritis with rheumatoid factor" and specifies shoulder involvement without laterality.

• Ensure documentation explicitly states "unspecified shoulder" or lacks laterality for the affected shoulder.
• Do not use if a more specific type of rheumatoid arthritis (e.g., with organ involvement, juvenile) is documented; look for codes within M05.0-M05.7.
• Confirm the presence of rheumatoid factor (RF) is documented, as codes exist for seronegative rheumatoid arthritis (M06.0-M06.9).