ICD-10-CM Code M26: Dentofacial anomalies [including malocclusion] and Related Diagnosis Codes.


The ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized coding system used when classifying diseases and medical conditions. Healthcare providers report these codes on Medical claims when diagnosing patient care.

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A categorized list of ICD-10-CM codes organized by chapters based on body systems or medical conditions, according to the International Classification of Diseases, Tenth Revision, Clinical Modification.

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

Note: The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes are developed and maintained by the Centers for Disease Control and Prevention (CDC). CDC's National Center for Health Statistics (NCHS) is responsible for the clinical modification of ICD-10 for use in the United States. The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM. All modifications to ICD-10 must conform to WHO's established ICD structure and conventions. All rights are reserved by the respective entities.