ICD-10 Code K05.322 – Chronic periodontitis, generalized, moderate (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K05.322 – Chronic periodontitis, generalized, moderate
What it is
K05.322 identifies generalized chronic periodontitis with moderate severity. It means long-standing inflammation and destruction of the supporting tissues around most teeth.
Clinical signs
Typical findings include gum inflammation, periodontal pocketing, attachment loss, and bone loss affecting multiple sites. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents chronic periodontitis, generalized distribution, and moderate severity. It fits dental or periodontal evaluations that describe ongoing disease rather than an acute gum infection.
Code it when the provider specifies the diagnosis, or when the chart supports generalized moderate periodontal disease without conflicting terms. Check documentation if severity or extent is unclear.
Do not use for
Do not use it for gingivitis, localized periodontitis, or acute periodontal abscess. If the note only says “periodontal disease” without severity or distribution, check documentation.
Coding tip
Confirm both “generalized” and “moderate” are documented before assigning K05.322.