ICD-10 Code K08.439 – Partial loss of teeth due to caries, unspecified class (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K08.439 – Partial loss of teeth due to caries, unspecified class
What it is
K08.439 identifies partial loss of teeth caused by dental caries, when the class of tooth loss is not specified. Use it for documented tooth loss from decay, not from trauma or periodontal disease.
Clinical signs
Clinical features vary; refer to documentation. Common findings include missing teeth, broken-down crowns, retained roots, or a history of tooth extraction due to decay.
When to use this code
Use this code when the record states partial tooth loss is due to caries and no class is documented. It fits encounters where the provider links tooth loss to decay, even if the exact pattern or extent is not described. Check documentation if the cause is unclear.
Do not use for
Do not use this code for tooth loss from trauma, periodontal disease, congenital absence, or other non-caries causes. If the chart does not clearly attribute the loss to caries, check documentation.
Coding tip
Code the cause as documented; if “due to caries” is missing, do not assume K08.439.