INTERNATIONAL CLASSIFICATION OF DISEASES

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524 Dentofacial anomalies, including malocclusion

524.0 Major anomalies of jaw size

          Hyperplasia, hypoplasia:
           mandibular
           maxillary
          Macrognathism (mandibular) (maxillary)
          Micrognathism (mandibular) (maxillary)
          Excludes: hemifacial atrophy or hypertrophy (754.0)
           unilateral condylar hyperplasia (526.8)

524.1 Anomalies of relationship of jaw to cranial base

          Asymmetry of jaw
          Prognathism, mandibular,, maxillary
          Retrognathism, mandibular, maxillary

524.2 Anomalies of dental arch relationship

          Crossbite (anterior) Overbite (excessive):
           (posterior) deep
          Disto-occlusion horizontal
          Mesio-occlusion vertical
          Midline deviation Overjet
          Open bite (anterior) Posterior lingual occlusion of
           (posterior) mandibular teeth
           Soft tissue impingement
          Excludes: hemifacial atrophy or hypertrophy (754.0)
           unilateral condylar hyperplasia (526.8)

524.3 Anomalies of tooth position

          Crowding of tooth, teeth Transposition of tooth, teeth
          Diastema of tooth, teeth Impacted or embedded teeth with
          Displacement of tooth, teeth abnormal position of such teeth or
          Rotation of tooth, teeth adjacent teeth
          Spacing, abnormal, of tooth,
           teeth

524.4 Malocclusion, unspecified

524.5 Dentofacial functional abnormalities

          Abnormal jaw closure
          Malocclusion due to:
           abnormal swallowing
           mouth breathing
           tongue, lip, or finger habits

524.6 Temporomandibular joint disorders

          Costen's complex or syndrome
          Derangement of temporomandibular joint
          Snapping jaw
          Temporomandibular joint-pain-dysfunction syndrome
          Excludes: current temporomandibular joint:
           dislocation (830.-)
           strain (848.1)

524.8 Other dentofacial anomalies

524.9 Unspecified

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INTERNACIONAL CLASSIFICATION OF DISEASES