Home > 2015 ICD-9-CM Diagnosis Codes > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Diseases of hard tissues of teeth 521-
Non-specific code 2015 ICD-9-CM Diagnosis Code 521.4
Pathological tooth resorption
  • 2015
  • Non-Billable Code

  • There are 4 ICD-9-CM codes below 521.4 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Clinical Information
  • Resorption of calcified dental tissue, involving demineralization due to reversal of the cation exchange and lacunar resorption by osteoclasts
  • Resorption of calcified dental tissue, involving demineralization due to reversal of the cation exchange and lacunar resorption by osteoclasts. There are two types: external (as a result of tooth pathology) and internal (apparently initiated by a peculiar inflammatory hyperplasia of the pulp). (from jablonski, dictionary of dentistry, 1992, p676)
 521.35 ICD9Data.com 521.40 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 521.4 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 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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