ICD-10 Code K08.59 – Other unsatisfactory restoration of tooth (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K08.59 – Other unsatisfactory restoration of tooth
What it is
K08.59 identifies a dental restoration that is present but not satisfactory. Use it when the filling, crown, or similar work is defective, poorly fitting, or otherwise not functioning as intended.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include marginal breakdown, looseness, recurrent decay around the restoration, or patient-reported discomfort with biting or chewing.
When to use this code
Use this code when the record clearly states that a restoration is unsatisfactory and the problem is not better described by another diagnosis. It may apply to a defective restoration noted on exam, imaging, or dental evaluation. Check documentation for the specific restoration type and reason.
Do not use for
Do not use this code for normal, intact restorations or for routine follow-up without a documented problem. If the issue is fracture, caries, or another specific condition, code that condition instead.
Coding tip
Capture the provider’s exact wording about the restoration problem; do not infer unsatisfactory status from symptoms alone.