K02 – Dental caries
ICD-10-CM 2027 diagnosis code · Diseases of oral cavity and salivary glands
ICD-10-CM code
K02
- Code
K02(claims format:K02)- Description
- Dental caries
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 11. Diseases of the digestive system (K00-K95)
- Block
- K00-K14 Diseases of oral cavity and salivary glands
Billable codes under K02
K02 is a header code and cannot be used on claims. Choose the most specific code:
- K02.3 – Arrested dental cariesBillable
- K02.5 – Dental caries on pit and fissure surfaceHeader (more codes below)
- K02.6 – Dental caries on smooth surfaceHeader (more codes below)
- K02.7 – Dental root cariesBillable
- K02.9 – Dental caries, unspecifiedBillable
Notes for K02
Includes:
- caries of dentine
- dental cavities
- early childhood caries
- pre-eruptive caries
- recurrent caries (dentino enamel junction) (enamel) (to the pulp)
- tooth decay
Frequently asked questions
What is ICD-10 code K02?
K02 is the ICD-10-CM code for dental caries, in the block K00-K14 (Diseases of oral cavity and salivary glands).
Is K02 a billable code?
No. K02 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.