Rheu arthritis w rheu factor of left hand w/o org/sys involv

This code signifies seropositive rheumatoid arthritis affecting the left hand, characterized by the presence of rheumatoid factor in the patient's blood. It specifically indicates that there is no systemic involvement of other organs or body systems beyond the joints.

Apply this code when documentation confirms a diagnosis of rheumatoid arthritis with a positive rheumatoid factor, localized to the left hand. Ensure the medical record explicitly states the absence of extra-articular manifestations or organ system involvement.

• Always confirm laterality (left vs. right hand) and the presence of rheumatoid factor.
• Do not use this code if there is any documented organ or systemic involvement; a more specific code from the M05.7- series would be required.
• Verify that the documentation supports the "without organ or systems involvement" aspect to avoid over-coding.