Dental caries
In Diseases of oral cavity and salivary glands (K00-K14), chapter 11: Diseases of the Digestive System
9 billable codes under K02: none are a CC or MCC; none map to an HCC.
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Instructional notes
Includes: conditions that are coded here
- caries of dentine
- dental cavities
- early childhood caries
- pre-eruptive caries
- recurrent caries (dentino enamel junction) (enamel) (to the pulp)
- tooth decay
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
There are no chapter-specific rules for Chapter 11 yet, so the general rules in Section I.B apply.
All codes under K02
K02 can't be used on a claim. Pick a billable code below; grey headings group them.
- K02.3Arrested dental caries
- K02.5Dental caries on pit and fissure surface
- K02.51Dental caries on pit and fissure surface limited to enamel
- K02.52Dental caries on pit and fissure surface penetrating into dentin
- K02.53Dental caries on pit and fissure surface penetrating into pulp
- K02.6Dental caries on smooth surface
- K02.61Dental caries on smooth surface limited to enamel
- K02.62Dental caries on smooth surface penetrating into dentin
- K02.63Dental caries on smooth surface penetrating into pulp
- K02.7Dental root caries
- K02.9Dental caries, unspecified
K02 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Tooth Decay
Tooth decay is damage to a tooth's surface, or enamel. It happens when bacteria in your mouth make acids that attack the enamel. Tooth decay can lead to cavities (dental caries), which are holes in your teeth. If tooth decay is not treated, it can cause pain, infection, and even tooth loss.
Read more about tooth decay on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.