Non-working side interference

This code describes a specific type of malocclusion where teeth on the non-functional (non-chewing) side of the mouth impede the smooth gliding movements of the jaw during mastication. This interference prevents proper disocclusion of the posterior teeth on the working side, leading to abnormal occlusal contacts.

Use this code when documentation clearly indicates an interference on the non-working side during excursive jaw movements. This is typically diagnosed during an occlusal analysis or functional examination. Supporting documentation should detail the specific teeth involved and the nature of the interference.

• Ensure the documentation explicitly states "non-working side interference" or describes the clinical findings consistent with this condition.
• Do not confuse this with working side interferences or other types of occlusal disharmonies.
• Consider sequencing this code with other codes describing the underlying cause of the malocclusion, if known (e.g., M26.2- for anomalies of dental arch relationship).