2021 ICD-10-CM Code K05.313

Chronic periodontitis, localized, severe

  1. ICD-10-CM Index
  2. Chapter: K00–K93
  3. Section: K00-K14
  4. Block: K05
  5. K05.313 - Chronic periodontitis, localized, severe
Version 2021
Billable Code

Valid for Submission

ICD-10:K05.313
Short Description:Chronic periodontitis, localized, severe
Long Description:Chronic periodontitis, localized, severe

Code Classification

  • Diseases of the digestive system (K00–K93)
    • Diseases of oral cavity and salivary glands (K00-K14)
      • Gingivitis and periodontal diseases (K05)

K05.313 is a billable diagnosis code used to specify a medical diagnosis of chronic periodontitis, localized, severe. The code K05.313 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code K05.313 might also be used to specify conditions or terms like localized chronic periodontitis or localized severe chronic periodontitis.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code K05.313 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Replacement Code

K05313 replaces the following previously assigned ICD-10 code(s):

Convert K05.313 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code K05.313 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Gum Disease

Also called: Periodontal disease

If you have gum disease, you're not alone. Many U.S. adults currently have some form of the disease. It ranges from simple gum inflammation, called gingivitis, to serious damage to the tissue and bone supporting the teeth. In the worst cases, you can lose teeth.

In gingivitis, the gums become red and swollen. They can bleed easily. Gingivitis is a mild form of gum disease. You can usually reverse it with daily brushing and flossing and regular cleanings by a dentist or dental hygienist. Untreated gingivitis can lead to periodontitis. If you have periodontitis, the gums pull away from the teeth and form pockets that become infected. If not treated, the bones, gums and connective tissue that support the teeth are destroyed.

NIH: National Institute of Dental and Craniofacial Research


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018

Previous Code: K05.312

Related Codes

Next Code: K05.319