ICD-9 Diagnosis Code 521.09

Dental caries NEC

Diagnosis Code 521.09

ICD-9: 521.09
Short Description: Dental caries NEC
Long Description: Other dental caries
This is the 2014 version of the ICD-9-CM diagnosis code 521.09

Code Classification
  • Diseases of the digestive system (520–579)
    • Diseases of oral cavity, salivary glands, and jaws (520-529)
      • 521 Diseases of hard tissues of teeth

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Caries involving multiple surfaces of tooth
  • Caries of infancy
  • Caries of infancy associated with bottle feeding
  • Caries of infancy associated with breast feeding
  • Caries of infancy, indeterminate origin
  • Dental caries secondary to acquired defects of tooth structure
  • Dental caries secondary to developmental defects of tooth structure
  • Finding of dental caries activity
  • Nonrestorable carious tooth
  • Primary dental caries, cervical origin
  • Primary dental caries, indeterminate origin
  • Primary dental caries, multisurface origin
  • Primary dental caries, nonproximal smooth surface origin
  • Primary dental caries, proximal smooth surface origin
  • Primary dental caries, root surface origin
  • Rampant dental caries
  • Secondary dental caries associated with failed or defective dental restoration
  • Secondary dental caries associated with local or systemic factors
  • Susceptible to caries

Index of Diseases and Injuries
References found for the code 521.09 in the Index of Diseases and Injuries:

Information for Patients

Tooth Decay

Also called: Cavities, Dental caries

You call it a cavity. Your dentist calls it tooth decay or dental caries. They're all names for a hole in your tooth. The cause of tooth decay is plaque, a sticky substance in your mouth made up mostly of germs. Tooth decay starts in the outer layer, called the enamel. Without a filling, the decay can get deep into the tooth and its nerves and cause a toothache or abscess.

To help prevent cavities

  • Brush your teeth every day with a fluoride toothpaste
  • Clean between your teeth every day with floss or another type of between-the-teeth cleaner
  • Snack smart - limit sugary snacks
  • See your dentist or oral health professional regularly

  • Dental cavities
  • Dental plaque identification at home
  • Dental sealants
  • Plaque: What It Is and How to Get Rid of It - NIH (National Institute of Dental and Craniofacial Research)
  • Seal Out Tooth Decay: A Fact Sheet for Parents - NIH (National Institute of Dental and Craniofacial Research)
  • Tooth decay - early childhood
  • Tooth decay -- early childhood
  • Toothaches

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