M26 - Dentofacial anomalies [including malocclusion]
M26.2 - Anomalies of dental arch relationship
M26.20 - Unspecified anomaly of dental arch relationship
M26.21 - Malocclusion, Angle's class
M26.211 - Malocclusion, Angle's class I
M26.212 - Malocclusion, Angle's class II
M26.213 - Malocclusion, Angle's class III
M26.219 - Malocclusion, Angle's class, unspecified
M26.22 - Open occlusal relationship
M26.220 - Open anterior occlusal relationship
M26.221 - Open posterior occlusal relationship
M26.23 - Excessive horizontal overlap
M26.24 - Reverse articulation
M26.25 - Anomalies of interarch distance
M26.29 - Other anomalies of dental arch relationship