Articular disc disorder of TMJ joint, unspecified side

This code signifies a structural or functional abnormality of the articular disc within the temporomandibular joint (TMJ) when the specific side affected is not documented. This disorder can lead to symptoms such as pain, clicking, popping, or limited jaw movement. It represents a general category for internal derangements of the TMJ disc.

Apply this code when the provider's documentation clearly indicates an articular disc disorder of the TMJ but does not specify whether it affects the left or right side. This is appropriate for initial evaluations or when laterality is unknown or not recorded. Documentation should support the diagnosis of a TMJ disc disorder, even if the side is unstated.

• Avoid using this code if laterality (left or right) is documented; instead, use the more specific M26.631 (right) or M26.632 (left).
• Ensure the medical record explicitly states a "disc disorder" or "internal derangement of the disc" of the TMJ.
• Consider sequencing this code with codes for associated symptoms like pain (e.g., R68.84 for jaw pain) if documented and not inherent to the disc disorder itself.