Adhesions and ankylosis of TMJ joint, unspecified side

This code signifies the pathological fusion or fibrous connection within the temporomandibular joint (TMJ), restricting its normal range of motion. This can result from trauma, infection, or inflammatory processes, leading to pain and difficulty with mastication and speech. The "unspecified side" indicates that the laterality of the condition is not documented.

Use this code when the patient's medical record clearly documents adhesions or ankylosis of the TMJ, but the specific side (left or right) affected is not specified. Documentation should include findings such as limited jaw opening, crepitus, or imaging reports confirming joint fusion or fibrous bands.

• Avoid using this code if laterality (left or right TMJ) is documented; instead, select the more specific code.
• Ensure the documentation differentiates between adhesions/ankylosis and other TMJ disorders like internal derangement or osteoarthritis.
• Consider sequencing this code after any underlying cause, such as trauma or inflammatory arthritis, if applicable and documented.