K02: Dental caries
Codes under K02 (Dental caries). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| K02.3 | Arrested dental caries | ✓ |
| K02.3 | Arrested dental caries | ✓ |
| K02.5 | Dental caries on pit and fissure surface | — |
| K02.5 | Dental caries on pit and fissure surface | — |
| K02.6 | Dental caries on smooth surface | — |
| K02.6 | Dental caries on smooth surface | — |
| K02.7 | Dental root caries | ✓ |
| K02.7 | Dental root caries | ✓ |
| K02.9 | Dental caries, unspecified | ✓ |
| K02.9 | Dental caries, unspecified | ✓ |
| K02.51 | Dental caries on pit and fissure surface limited to enamel | ✓ |
| K02.51 | Dental caries on pit and fissure surface limited to enamel | ✓ |
| K02.52 | Dental caries on pit and fissure surface penetrating into dentin | ✓ |
| K02.52 | Dental caries on pit and fissure surface penetrating into dentin | ✓ |
| K02.53 | Dental caries on pit and fissure surface penetrating into pulp | ✓ |
| K02.53 | Dental caries on pit and fissure surface penetrating into pulp | ✓ |
| K02.61 | Dental caries on smooth surface limited to enamel | ✓ |
| K02.61 | Dental caries on smooth surface limited to enamel | ✓ |
| K02.62 | Dental caries on smooth surface penetrating into dentin | ✓ |
| K02.62 | Dental caries on smooth surface penetrating into dentin | ✓ |
| K02.63 | Dental caries on smooth surface penetrating into pulp | ✓ |
| K02.63 | Dental caries on smooth surface penetrating into pulp | ✓ |
Frequently asked questions
What is ICD-10-CM code K02?
K02 is an ICD-10-CM category covering Dental caries. It contains 22 more specific diagnosis codes, 18 of which are billable.
Is K02 a billable code?
No — K02 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example K02.3 — Arrested dental caries). 18 of the 22 codes under K02 are billable.
What codes fall under K02?
K02 includes K02.3, K02.3, K02.5, K02.5, K02.6, plus 17 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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