Chronic periodontitis, localized, moderate

This code identifies a persistent, localized inflammatory disease affecting the supporting structures of a tooth, characterized by moderate bone loss and attachment loss. It signifies a stage of periodontal disease where the destruction is confined to specific areas of the dentition, rather than being generalized throughout the mouth.

Apply this code when documentation indicates chronic periodontitis affecting only certain teeth or quadrants, with clinical signs consistent with moderate severity, such as 3-4mm clinical attachment loss and radiographic evidence of moderate bone loss. Supporting documentation should include periodontal charting, radiographic findings, and a clear diagnosis from the dentist or periodontist.

• Differentiate from generalized periodontitis, which affects most teeth.
• Ensure the documentation specifies "moderate" severity; avoid using this code for mild or severe cases.
• Confirm the chronic nature of the condition, as opposed to acute periodontitis.