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2025 ICD-10-CM code K05.31

Chronic periodontitis affecting a localized area in the mouth.

Use additional codes to specify the severity (slight, moderate, severe, unspecified) and any associated systemic conditions or tobacco use.

Medical necessity for treatment of chronic periodontitis is established by the presence of active disease and the potential for further damage to the supporting structures of the teeth. This can be demonstrated through clinical findings and radiographic evidence.

Diagnosis and treatment of chronic periodontitis fall under the purview of dentists and periodontists.They are responsible for assessing the extent of the disease, developing a treatment plan, and providing ongoing care to manage the condition and prevent further damage.

In simple words: Long-lasting gum disease in a specific area of your mouth.

Chronic periodontitis is a long-term inflammatory disease affecting the supporting structures of the teeth, including the gums, periodontal ligament, and alveolar bone."Localized" signifies that the disease is limited to specific sites in the mouth, rather than being widespread.

Example 1: A patient presents with localized gum recession, bone loss, and inflammation around a few teeth.After a thorough examination, the dentist diagnoses localized chronic periodontitis., A patient with type 2 diabetes experiences persistent gum problems despite regular dental cleanings. The periodontist diagnoses localized chronic periodontitis as a complication of their diabetes., During a routine dental checkup, a patient is found to have pocketing and attachment loss limited to the lower anterior teeth, consistent with localized chronic periodontitis.

Documentation should include clinical findings like probing depths, attachment loss, radiographic evidence of bone loss, and the extent of inflammation.Any contributing factors, such as smoking or systemic diseases, should also be noted.

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