Arthropathy of left temporomandibular joint

This code signifies a disease of the left temporomandibular joint (TMJ) that affects its structure and function. This condition involves non-inflammatory or inflammatory joint pathology, leading to symptoms such as pain, limited range of motion, and joint sounds in the left jaw.

Apply this code when documentation specifies an arthropathy affecting the left temporomandibular joint. This includes conditions like osteoarthritis, degenerative joint disease, or other non-traumatic joint disorders impacting the left TMJ. Supporting documentation should clearly indicate the affected side and the nature of the arthropathy.

• Ensure the documentation explicitly states "left" temporomandibular joint; do not assume laterality.
• Differentiate from other TMJ disorders, such as internal derangement (e.g., M26.62-), which have distinct codes.
• Code any associated pain (e.g., G50.1 for atypical facial pain) or other symptoms separately if documented.