524.4 MALOCCLUSION NOS


Code Information

Diagnosis Code: 524.4

Short Description: Malocclusion NOS

Long Description: Malocclusion, unspecified

Code Classification:

  • Diseases of the digestive system (520–579)
    • Diseases of oral cavity, salivary glands, and jaws (520-529)
      • 524 Dentofacial anomalies, including malocclusion
        • 524.4 Malocclusion NOS

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 524.4 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Aclusion 524.4
  • Malocclusion (teeth) 524.4
    • due to
      • abnormal swallowing 524.59
      • accessory teeth (causing crowding) 524.31
      • dentofacial abnormality NEC 524.89
      • impacted teeth (causing crowding) 520.6
      • missing teeth 524.30
      • mouth breathing 524.59
      • sleep postures 524.59
      • supernumerary teeth (causing crowding) 524.31
      • thumb sucking 524.59
      • tongue, lip, or finger habits 524.59
    • temporomandibular (joint) 524.69

Crosswalk Information

The code 524.4 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
524.4 Right Arrow M26.4 Malocclusion, unspecified
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
524.00 Major anomalies of jaw size, unspecified anomaly
524.01 Major anomalies of jaw size, maxillary hyperplasia
524.02 Major anomalies of jaw size, mandibular hyperplasia
524.03 Major anomalies of jaw size, maxillary hypoplasia
524.04 Major anomalies of jaw size, mandibular hypoplasia
524.05 Major anomalies of jaw size, macrogenia
524.06 Major anomalies of jaw size, microgenia
524.07 Excessive tuberosity of jaw
524.09 Major anomalies of jaw size, other specified anomaly
524.10 Anomalies of relationship of jaw to cranial base, unspecified anomaly
524.11 Anomalies of relationship of jaw to cranial base, maxillary asymmetry
524.12 Anomalies of relationship of jaw to cranial base, other jaw asymmetry
524.19 Anomalies of relationship of jaw to cranial base, other specified anomaly
524.20 Unspecified anomaly of dental arch relationship
524.21 Malocclusion, Angle's class I
524.22 Malocclusion, Angle's class II
524.23 Malocclusion, Angle's class III
524.24 Open anterior occlusal relationship
524.25 Open posterior occlusal relationship
524.26 Excessive horizontal overlap
524.27 Reverse articulation
524.28 Anomalies of interarch distance
524.29 Other anomalies of dental arch relationship
524.30 Unspecified anomaly of tooth position
524.31 Crowding of teeth
524.32 Excessive spacing of teeth
524.33 Horizontal displacement of teeth
524.34 Vertical displacement of teeth
524.35 Rotation of tooth/teeth
524.36 Insufficient interocclusal distance of teeth (ridge)
524.37 Excessive interocclusal distance of teeth
524.39 Other anomalies of tooth position
524.50 Dentofacial functional abnormality, unspecified
524.51 Abnormal jaw closure
524.52 Limited mandibular range of motion
524.53 Deviation in opening and closing of the mandible
524.54 Insufficient anterior guidance
524.55 Centric occlusion maximum intercuspation discrepancy
524.56 Non-working side interference
524.57 Lack of posterior occlusal support
524.59 Other dentofacial functional abnormalities
524.60 Temporomandibular joint disorders, unspecified
524.61 Temporomandibular joint disorders, adhesions and ankylosis (bony or fibrous)
524.62 Temporomandibular joint disorders, arthralgia of temporomandibular joint
524.63 Temporomandibular joint disorders, articular disc disorder (reducing or non-reducing)
524.64 Temporomandibular joint sounds on opening and/or closing the jaw
524.69 Other specified temporomandibular joint disorders
524.70 Dental alveolar anomalies, unspecified alveolar anomaly
524.71 Alveolar maxillary hyperplasia
524.72 Alveolar mandibular hyperplasia
524.73 Alveolar maxillary hypoplasia
524.74 Alveolar mandibular hypoplasia
524.75 Vertical displacement of alveolus and teeth
524.76 Occlusal plane deviation
524.79 Other specified alveolar anomaly
524.81 Anterior soft tissue impingement
524.82 Posterior soft tissue impingement
524.89 Other specified dentofacial anomalies
524.9 Unspecified dentofacial anomalies


This page was last updated on: 10/1/2014