ICD-10 Code K05.222 – Aggressive periodontitis, generalized, moderate (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K05.222 – Aggressive periodontitis, generalized, moderate
What it is
K05.222 identifies generalized aggressive periodontitis with a moderate severity level. Use it for periodontal disease marked by rapid attachment and bone loss affecting multiple teeth, not just a localized area.
Clinical signs
Typical findings include inflamed gums, periodontal pocketing, attachment loss, and radiographic bone destruction. Clinical features vary; refer to documentation for generalized involvement and moderate disease extent.
When to use this code
Use this code when the record clearly documents generalized aggressive periodontitis and also specifies moderate severity. It is appropriate when the dentist or periodontist describes widespread periodontal destruction with no conflicting diagnosis. Check documentation if severity or distribution is unclear.
Do not use for
Do not use this code for localized aggressive periodontitis, mild or severe disease, or chronic periodontitis. If the note only says “periodontitis” without type, extent, and severity, check documentation.
Coding tip
Match all three elements—aggressive type, generalized extent, and moderate severity—before assigning K05.222.