Aggressive periodontitis, localized, moderate

This code signifies a form of periodontitis characterized by rapid attachment loss and bone destruction, primarily affecting localized areas of the dentition. It indicates a moderate severity level, meaning there is significant but not extreme tissue damage. The condition often presents in otherwise healthy individuals.

Apply this code when documentation specifies aggressive periodontitis that is confined to specific teeth or quadrants, and the clinician assesses the severity as moderate. This typically involves moderate clinical attachment loss and radiographic bone loss. Supporting documentation should clearly distinguish it from chronic periodontitis and specify the localized nature and moderate severity.

• Ensure documentation explicitly states "aggressive periodontitis" and specifies "localized" and "moderate" severity.
• Differentiate from K05.211 (mild) and K05.219 (unspecified) aggressive periodontitis, localized.
• Do not confuse with codes for chronic periodontitis (K05.3- series), which has a different disease progression and etiology.