Specific code 2014 ICD-9-CM Diagnosis Code 520.1
Supernumerary teeth
  • Billable Code
  • ICD-9-CM 520.1 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 520.1 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Supernumerary tooth
Clinical Information
  • An extra tooth, erupted or unerupted, resembling or unlike the other teeth in the group to which it belongs. Its presence may cause malposition of adjacent teeth or prevent their eruption.
  • Supernumerary tooth, any tooth in addition to the normal permanent and primary dentition
520.1 Excludes
  • supernumerary roots (520.2)
Applies To
  • Distomolar
  • Fourth molar
  • Mesiodens
  • Paramolar
  • Supplemental teeth
Convert to ICD-10-CM: 520.1 converts directly to:
  • 2014 ICD-10-CM K00.1 Supernumerary teeth
ICD-9-CM Volume 2 Index entries containing back-references to 520.1:
  • Accessory (congenital)
    • teeth, tooth 520.1
  • Distomolar (fourth molar) 520.1
  • Excess, excessive, excessively
    • number of teeth 520.1
  • Fourth
    • molar 520.1
  • Mesiodens, mesiodentes 520.1
  • Paramolar 520.1
  • Supernumerary (congenital)
    • teeth 520.1
  • Supplemental teeth 520.1
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 520.1 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.