Aggressive periodontitis, localized, severe

This code signifies a severe, rapidly progressing form of periodontitis affecting specific teeth or areas of the mouth. It is characterized by significant attachment loss and bone destruction, often in otherwise healthy individuals, and is not generalized throughout the dentition.

Apply this code when documentation explicitly states "aggressive periodontitis" that is "localized" and "severe." This diagnosis is typically made based on clinical examination, radiographic evidence of bone loss, and a rapid rate of disease progression in specific sites.

• Ensure the documentation specifies "localized" and "severe" to differentiate from generalized or moderate forms.
• Do not confuse with chronic periodontitis codes, which represent a slower, more common progression of the disease.
• Look for terms like "rapid attachment loss," "rapid bone destruction," or "early onset" in specific areas to support the "aggressive" and "localized" nature.