ICD-10 Code K05.22 – Aggressive periodontitis, generalized (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K05.22 – Aggressive periodontitis, generalized
What it is
K05.22 identifies generalized aggressive periodontitis, a severe periodontal disease that affects the supporting structures of multiple teeth. It is used when documentation shows rapid attachment loss and bone destruction beyond routine gingivitis.
Clinical signs
Common findings include deep periodontal pockets, bleeding on probing, loss of clinical attachment, and radiographic bone loss involving many teeth. Clinical features vary; refer to documentation.
When to use this code
Use K05.22 when the record specifically documents generalized aggressive periodontitis or an equivalent diagnosis. Apply it when the disease is widespread, not limited to one site, and the provider describes rapid progression or early severe periodontal breakdown.
Do not use for
Do not use this code for localized aggressive periodontitis, chronic periodontitis, or simple gingivitis. Check documentation if the note only says “periodontal disease” without specifying the aggressive generalized form.
Coding tip
Verify that “generalized” and “aggressive periodontitis” both appear in the documentation before assigning K05.22.