Crowding of fully erupted teeth

This code signifies a dental malocclusion where there is insufficient space in the dental arch to accommodate all fully erupted permanent teeth in proper alignment. This results in teeth being rotated, displaced, or overlapping. It is a common orthodontic concern affecting dental aesthetics and function.

Apply this code when documentation explicitly states "crowding of fully erupted teeth" or describes a similar condition where permanent teeth are present but misaligned due to lack of arch space. Supporting documentation typically includes orthodontic evaluations, dental examinations, and radiographic findings confirming the presence of all permanent teeth and their crowded arrangement.

• Differentiate from crowding due to unerupted or partially erupted teeth, which would fall under different codes.
• Do not use for primary dentition crowding; this code is specific to permanent teeth.
• Consider additional codes for associated conditions like malocclusion (e.g., M26.4x) if specified.