Malocclusion, Angle's class III

This code signifies a specific type of dental malocclusion where the mandibular (lower) molars are positioned mesially (forward) relative to the maxillary (upper) molars, often resulting in an underbite. It represents a skeletal and/or dental discrepancy affecting the alignment of the teeth and jaws.

Use this code when documentation clearly indicates a diagnosis of Angle's Class III malocclusion. This typically involves a clinical assessment by an orthodontist or dentist, often supported by cephalometric analysis or dental models. It applies to cases where the lower jaw protrudes or the upper jaw is retruded.

• Ensure the documentation explicitly states "Angle's Class III" or provides a clear description consistent with this classification (e.g., "mandibular prognathism," "underbite").
• Do not confuse with Class I (normal occlusion) or Class II (overbite) malocclusions; these have distinct codes.
• Consider additional codes for associated conditions such as temporomandibular joint disorders (TMJ) or breathing difficulties, if documented.