ICD-10 Code K00.3 – Mottled teeth (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K00.3 – Mottled teeth
What it is
K00.3 identifies mottled teeth, a developmental enamel defect that gives teeth a patchy, discolored appearance. It is used when the tooth surface shows mottling rather than decay or trauma.
Clinical signs
Typical findings include enamel discoloration, white, brown, or opaque patches, and a speckled or streaked look. Clinical features vary; refer to documentation if the cause or extent is not clearly described.
When to use this code
Use K00.3 when the provider documents mottled teeth, dental mottling, or a similar enamel change. It fits cases where the finding is recorded as a diagnosis and not merely an incidental cosmetic note. If the record does not clearly support the term, check documentation.
Do not use for
Do not use this code for tooth discoloration from caries, staining, trauma, or medication effects unless the provider specifically documents mottled teeth. Check documentation if the appearance is better explained by another dental condition.
Coding tip
Code only when the chart explicitly links the finding to mottled teeth, not just general “discolored teeth.”