ICD-10 Code K05.213 – Aggressive Periodontitis, Localized, Severe (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K05.213 – Aggressive periodontitis, localized, severe
What it is
K05.213 identifies localized aggressive periodontitis with severe involvement. It refers to rapid periodontal destruction affecting limited sites, usually with significant attachment and bone loss. Use the code only when the documentation clearly supports this specific diagnosis.
Clinical signs
Typical findings include localized deep periodontal pockets, attachment loss, and radiographic bone loss that progresses faster than expected. Clinical features vary; refer to documentation.
When to use this code
Use K05.213 when the provider documents aggressive periodontitis, localized, and indicates severe disease. Apply it for charted periodontal destruction limited to specific teeth or areas, not generalized periodontal disease. If the record is unclear, check documentation before coding.
Do not use for
Do not use this code for generalized periodontitis, gingivitis, or unspecified periodontal disease. Avoid it when the record does not confirm localized aggressive disease or severity; check documentation.
Coding tip
Match all three elements—aggressive, localized, and severe—before assigning K05.213.