ICD-10 Code K00.0 – Anodontia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K00.0 – Anodontia
What it is
Anodontia means complete absence of teeth. Use this code when the chart documents that no teeth are present, whether from a developmental condition or another clearly documented cause.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include no erupted primary or permanent teeth and confirmation on oral examination or dental imaging.
When to use this code
Use K00.0 when the provider documents true anodontia, not delayed eruption or missing teeth from extraction or trauma. It may apply when the record describes congenital absence of all teeth or a complete lack of tooth development.
If the note only says “edentulous” or “missing teeth,” check documentation to confirm that anodontia is the intended diagnosis.
Do not use for
Do not use this code for partial tooth absence, tooth loss after extraction, or routine edentulism without documented anodontia. Check documentation.
Coding tip
Code only when the record clearly states complete absence of teeth; otherwise, query for clarification.