Specific code 2011 ICD-9-CM Diagnosis Code 521.00
Unspecified dental caries
  • Short description: Dental caries NOS.
  • ICD-9-CM 521.00 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 521.00 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2011 version of ICD-9-CM 521.00.
  • More recent version(s) of ICD-9-CM 521.00: 2012 2013 2014 2015.
Convert to ICD-10-CM: 521.00 converts approximately to:
  • 2015/16 ICD-10-CM K02.9 Dental caries, unspecified
Approximate Synonyms
  • Dental caries
  • Dental caries due to radiation
  • Radiation induced dental caries
ICD-9-CM Volume 2 Index entries containing back-references to 521.00:
  • Caries (bone) (see also Tuberculosis, bone) 015.9 [730.8]
    • teeth (internal) 521.00
  • Carious teeth 521.00
  • Cavity
    • teeth 521.00
  • Decay
    • dental 521.00
    • tooth, teeth 521.00
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 521.00 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 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.