Oth rheumatoid arthritis w rheumatoid factor of l shoulder

This diagnosis code signifies a form of rheumatoid arthritis, confirmed by the presence of rheumatoid factor, affecting the left shoulder joint. It is used when the specific type of rheumatoid arthritis does not fit into other more defined categories (e.g., without organ involvement, with lung involvement).

Apply this code when documentation specifies rheumatoid arthritis with a positive rheumatoid factor, primarily impacting the left shoulder, and not otherwise classified. This typically follows a rheumatologist's diagnosis supported by serological testing and clinical findings localized to the left shoulder.

• Ensure documentation explicitly states "other" rheumatoid arthritis and a positive rheumatoid factor.
• Verify the affected joint is specifically the left shoulder; laterality is crucial.
• Do not use this code if a more specific type of rheumatoid arthritis (e.g., with specific organ involvement) is documented.