Excessive horizontal overlap

This code describes a malocclusion characterized by an abnormally large horizontal distance between the incisal edges of the maxillary and mandibular anterior teeth, commonly known as an overjet. This condition can impact mastication, speech, and esthetics, and may increase the risk of trauma to the maxillary incisors.

Use this code when documentation specifies an excessive horizontal overlap of the anterior teeth, often measured in millimeters. This diagnosis is typically made during an orthodontic or dental examination. Supporting documentation should include measurements of the overjet or a clear statement of "excessive overjet."

• Differentiate from deep bite (excessive vertical overlap), which is coded separately.
• Ensure the documentation explicitly states "excessive" or provides a measurement indicating an abnormal overjet.
• Consider sequencing this code with other malocclusion codes (e.g., crowding, crossbite) if multiple conditions are present.