Specific code 2008 ICD-9-CM Diagnosis Code 520.2
Abnormalities of size and form of teeth
  • Short description: ABNORMAL TOOTH SIZE/FORM.
  • ICD-9-CM 520.2 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 520.2 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2008 version of ICD-9-CM 520.2.
  • More recent version(s) of ICD-9-CM 520.2: 2009 2010 2011 2012 2013 2014.
Disease Synonyms
  • Abnl form of teeth
  • Abnl size of teeth
  • Abnormal crown of tooth
  • Abnormal form of root of tooth
  • Abnormal form of teeth
  • Abnormal size of teeth
  • Abnormal size of tooth
  • Abnormally formed tooth
  • Amelogenesis imperfecta, hypomaturation hypoplasia type with taurodontism
  • Amelogenesis imperfecta, hypoplastic type with microdontia
  • Concrescence of teeth
  • Congenital anomaly in number of teeth
  • Conical form of root of tooth
  • Conical supernumerary tooth
  • Curved form of root of tooth
  • Dens evaginatus
  • Dens in dente
  • Enamel pearls
  • Enamel spur
  • Exaggerated cingulum of tooth
  • Exaggerated cusp of tooth
  • Fusion of crown of teeth
  • Fusion of teeth
  • Gemination of teeth
  • Generalized macrodontia
  • Hypertaurodontism
  • Lateral accessory root canals
  • Localized macrodontia
  • Localized microdontia
  • Macrodontia
  • Mesotaurodontism
  • Microdontia
  • Multirooted tooth with convergent roots
  • Multirooted tooth with divergent roots
  • Paired teeth microdontia
  • Peg-shaped teeth
  • Sharp tooth
  • Single tooth microdontia
  • Supernumerary roots
  • Talon cusp
  • Taurodontism
  • True generalized microdontia
  • Tuberculum paramolare
520.2 Excludes
  • that due to congenital syphilis (090.5)
  • tuberculum Carabelli, which is regarded as a normal variation
Applies To
  • Concrescence of teeth
  • Fusion of teeth
  • Gemination of teeth
  • Dens evaginatus
  • Dens in dente
  • Dens invaginatus
  • Enamel pearls
  • Macrodontia
  • Microdontia
  • Peg-shaped [conical] teeth
  • Supernumerary roots
  • Taurodontism
  • Tuberculum paramolare
Convert to ICD-10-CM: 520.2 converts directly to:
  • 2014 ICD-10-CM K00.2 Abnormalities of size and form of teeth
ICD-9-CM Volume 2 Index entries containing back-references to 520.2:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • form, teeth 520.2
    • size
      • fetus, complicating delivery 653.5
        • causing obstructed labor 660.1
      • gallbladder 751.69
      • head (see also Anomaly, skull) 756.0
      • organ or site, congenital NEC - see Distortion
      • teeth 520.2
  • Accessory (congenital)
    • roots (teeth) 520.2
  • Anomaly, anomalous (congenital) (unspecified type) 759.9
    • form, teeth 520.2
  • Concrescence (teeth) 520.2
  • Conical
    • teeth 520.2
  • Dens
    • evaginatus 520.2
    • in dente 520.2
    • invaginatus 520.2
  • Dichotomy, teeth 520.2
  • Elongation, elongated (congenital) - see also Distortion
    • tooth, teeth 520.2
  • Enameloma 520.2
  • Fusion, fused (congenital)
    • teeth, tooth 520.2
  • Gemination, teeth 520.2
  • Macrodontia 520.2
  • Microdontia 520.2
  • Molarization, premolars 520.2
  • Pearls
    • enamel 520.2
  • Peg-shaped teeth 520.2
  • Predeciduous teeth 520.2
  • Premolarization, cuspids 520.2
  • Schizodontia 520.2
  • Shovel-shaped incisors 520.2
  • Spicule tooth 520.2
  • Supernumerary (congenital)
    • roots (of teeth) 520.2
  • Synodontia 520.2
  • Taurodontism 520.2
  • T-shaped incisors 520.2
  • Tuberculum
    • occlusal 520.2
    • paramolare 520.2
  • Twinning, teeth 520.2
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 520.2 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2008 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.