Chronic periodontitis, localized, unspecified severity

This code signifies a persistent, localized inflammatory disease affecting the supporting structures of a tooth, specifically the gingiva, periodontal ligament, and alveolar bone. It indicates that the severity of the condition, while present in a specific area, has not been documented or specified by the clinician.

Use this code when the patient presents with chronic periodontitis confined to a specific tooth or group of teeth, and the clinical documentation does not specify the severity (e.g., mild, moderate, severe). This code is appropriate when the provider notes "localized chronic periodontitis" without further detail on the extent of attachment loss or bone destruction.

• Ensure documentation clearly states "localized" and does not specify severity. If severity is documented, a more specific code should be used.
• Distinguish from generalized periodontitis (K05.30) where the disease affects most teeth.
• This code is often accompanied by codes for dental caries or other dental conditions if present.