ICD-10 Code K00.8 – Other disorders of tooth development (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K00.8 – Other disorders of tooth development
What it is
K00.8 identifies tooth development problems that do not fit a more specific congenital or developmental dental code. Use it for abnormal formation, shape, size, or structure of teeth when documentation supports a developmental disorder.
Clinical signs
Findings may include unusual tooth number, shape, size, or enamel/dentin formation. Clinical features vary; refer to documentation.
When to use this code
Use K00.8 when the record describes a developmental disorder of the teeth and no more specific ICD-10 code applies. It is appropriate for congenital or developmental anomalies documented by the dentist or clinician. Check documentation if the note only says “abnormal teeth” without further detail.
Do not use for
Do not use this code for acquired tooth damage, caries, trauma, or routine malocclusion. If the chart describes a more specific developmental tooth anomaly, code that condition instead.
Coding tip
Look for the exact dental diagnosis in the assessment, not just a procedure note, before assigning K00.8.