Category M26

Dentofacial anomalies [including malocclusion]

Clinical Classification Guidelines

Specific Diagnosis Codes

Major anomalies of jaw size
M26.0
Unspecified anomaly of jaw size
M26.00
Maxillary hyperplasia
M26.01
Maxillary hypoplasia
M26.02
Mandibular hyperplasia
M26.03
Mandibular hypoplasia
M26.04
Macrogenia
M26.05
Microgenia
M26.06
Excessive tuberosity of jaw
M26.07
Other specified anomalies of jaw size
M26.09
Anomalies of jaw-cranial base relationship
M26.1
Unspecified anomaly of jaw-cranial base relationship
M26.10
Maxillary asymmetry
M26.11
Other jaw asymmetry
M26.12
Other specified anomalies of jaw-cranial base relationship
M26.19
Anomalies of dental arch relationship
M26.2
Unspecified anomaly of dental arch relationship
M26.20
Malocclusion, Angle's class
M26.21
Malocclusion, Angle's class I
M26.211
Malocclusion, Angle's class II
M26.212
Malocclusion, Angle's class III
M26.213
Malocclusion, Angle's class, unspecified
M26.219
Open occlusal relationship
M26.22
Open anterior occlusal relationship
M26.220
Open posterior occlusal relationship
M26.221
Excessive horizontal overlap
M26.23
Reverse articulation
M26.24
Anomalies of interarch distance
M26.25
Other anomalies of dental arch relationship
M26.29
Anomalies of tooth position of fully erupted tooth or teeth
M26.3
Unspecified anomaly of tooth position of fully erupted tooth or teeth
M26.30
Crowding of fully erupted teeth
M26.31
Excessive spacing of fully erupted teeth
M26.32
Horizontal displacement of fully erupted tooth or teeth
M26.33
Vertical displacement of fully erupted tooth or teeth
M26.34
Rotation of fully erupted tooth or teeth
M26.35
Insufficient interocclusal distance of fully erupted teeth (ridge)
M26.36
Excessive interocclusal distance of fully erupted teeth
M26.37
Other anomalies of tooth position of fully erupted tooth or teeth
M26.39
Malocclusion, unspecified
M26.4
Dentofacial functional abnormalities
M26.5
Dentofacial functional abnormalities, unspecified
M26.50
Abnormal jaw closure
M26.51
Limited mandibular range of motion
M26.52
Deviation in opening and closing of the mandible
M26.53
Insufficient anterior guidance
M26.54
Centric occlusion maximum intercuspation discrepancy
M26.55
Non-working side interference
M26.56
Lack of posterior occlusal support
M26.57
Other dentofacial functional abnormalities
M26.59
Temporomandibular joint disorders
M26.6
Temporomandibular joint disorder, unspecified
M26.60
Right temporomandibular joint disorder, unspecified
M26.601
Left temporomandibular joint disorder, unspecified
M26.602
Bilateral temporomandibular joint disorder, unspecified
M26.603
Unspecified temporomandibular joint disorder, unspecified side
M26.609
Adhesions and ankylosis of temporomandibular joint
M26.61
Adhesions and ankylosis of right temporomandibular joint
M26.611
Adhesions and ankylosis of left temporomandibular joint
M26.612
Adhesions and ankylosis of bilateral temporomandibular joint
M26.613
Adhesions and ankylosis of temporomandibular joint, unspecified side
M26.619
Arthralgia of temporomandibular joint
M26.62
Arthralgia of right temporomandibular joint
M26.621
Arthralgia of left temporomandibular joint
M26.622
Arthralgia of bilateral temporomandibular joint
M26.623
Arthralgia of temporomandibular joint, unspecified side
M26.629
Articular disc disorder of temporomandibular joint
M26.63
Articular disc disorder of right temporomandibular joint
M26.631
Articular disc disorder of left temporomandibular joint
M26.632
Articular disc disorder of bilateral temporomandibular joint
M26.633
Articular disc disorder of temporomandibular joint, unspecified side
M26.639
Arthritis of temporomandibular joint
M26.64
Arthritis of right temporomandibular joint
M26.641
Arthritis of left temporomandibular joint
M26.642
Arthritis of bilateral temporomandibular joint
M26.643
Arthritis of unspecified temporomandibular joint
M26.649
Arthropathy of temporomandibular joint
M26.65
Arthropathy of right temporomandibular joint
M26.651
Arthropathy of left temporomandibular joint
M26.652
Arthropathy of bilateral temporomandibular joint
M26.653
Arthropathy of unspecified temporomandibular joint
M26.659
Other specified disorders of temporomandibular joint
M26.69
Dental alveolar anomalies
M26.7
Unspecified alveolar anomaly
M26.70
Alveolar maxillary hyperplasia
M26.71
Alveolar mandibular hyperplasia
M26.72
Alveolar maxillary hypoplasia
M26.73
Alveolar mandibular hypoplasia
M26.74
Other specified alveolar anomalies
M26.79
Other dentofacial anomalies
M26.8
Anterior soft tissue impingement
M26.81
Posterior soft tissue impingement
M26.82
Other dentofacial anomalies
M26.89
Dentofacial anomaly, unspecified
M26.9