ICD-10 Code K02.61 – Dental caries on smooth surface limited to enamel (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K02.61 – Dental caries on smooth surface limited to enamel
What it is
This code identifies dental caries affecting a smooth tooth surface when the decay is limited to the enamel. Use it for early, superficial decay that has not extended into dentin.
Clinical signs
Findings typically include a visible or radiographic carious lesion on a smooth surface with no evidence of dentinal involvement. Clinical features vary; refer to documentation.
When to use this code
Use K02.61 when the record clearly states smooth-surface caries limited to enamel. It also fits when the dentist documents an incipient lesion confined to enamel on a smooth surface. If the note does not specify surface or depth, check documentation before coding.
Do not use for
Do not use this code for caries involving dentin, root surfaces, pits, or fissures. If the documentation is nonspecific or describes advanced decay, choose a more accurate code or check documentation.
Coding tip
Match both the surface type and depth of decay exactly as documented before assigning K02.61.