ICD-10 Code K08.12 – Complete loss of teeth due to periodontal diseases (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K08.12 – Complete loss of teeth due to periodontal diseases
What it is
K08.12 identifies complete loss of teeth caused by periodontal disease. Use it when the record shows all teeth are lost because of gum and supporting tissue disease, not trauma or another dental condition.
Clinical signs
Clinical features vary; refer to documentation. Typical records note total edentulism with a periodontal cause, such as advanced periodontitis, loss of tooth support, or extraction related to periodontal destruction.
When to use this code
Use this code when the provider documents complete tooth loss and clearly links it to periodontal disease. It may appear in dental, oral surgery, or general medical notes describing full edentulism from chronic periodontal breakdown.
If the chart only says “missing teeth” or does not state the cause, check documentation before assigning K08.12. Code the periodontal etiology only when it is explicitly supported.
Do not use for
Do not use K08.12 for tooth loss due to trauma, congenital absence, caries, or unspecified missing teeth. If the cause is not documented, do not assume periodontal disease.
Coding tip
Link the diagnosis to periodontal disease in the provider note before coding K08.12.