ICD-10 Code K05.219 – Aggressive periodontitis, localized, unspecified severity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K05.219 – Aggressive periodontitis, localized, unspecified severity
What it is
K05.219 identifies localized aggressive periodontitis without a documented severity level. It refers to rapid periodontal attachment and bone loss affecting limited areas of the mouth.
Clinical signs
Typical findings include localized pocketing, gingival inflammation, and rapid loss of attachment around selected teeth. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents localized aggressive periodontitis and does not specify mild, moderate, or severe disease. It also fits records describing rapid periodontal destruction in a localized pattern. If the note uses a different periodontal diagnosis, check documentation.
Do not use for
Do not use K05.219 for generalized periodontal disease or for gingivitis without attachment loss. Do not assign it when the record does not clearly support aggressive periodontitis.
Coding tip
Look for the terms localized and aggressive together, and confirm that severity is not stated elsewhere in the chart.