K05.321
ICD-10-CMThis code describes a widespread, long-standing inflammation of the tissues supporting the teeth, characterized by slight attachment loss and bone destruction. It indicates a chronic form of periodontal disease affecting most teeth, with early signs of tissue damage.
Use this code for patients diagnosed with chronic periodontitis where the disease affects 30% or more of the teeth and the clinical attachment loss (CAL) is 1-2 mm. Documentation should clearly state "generalized" and "slight" or "mild" periodontitis, often supported by periodontal charting and radiographic findings.
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