What ICD-10 Codes are Used for Dental Caries
Dental caries, or tooth decay or cavities, are common dental ailments with several corresponding ICD-10 codes. These codes accurately represent the specific nature and location of the decay. Here are some of the most frequently used codes:
- K02.51: This code is used when dental caries are found on the pit and fissure surfaces and are confined solely to the enamel. The pit and fissure surfaces refer to the grooves and depressions found on the chewing surfaces of the teeth.
- K02.6: Representing dental caries on smooth surfaces, this code is utilized when decay forms on your teeth' flat, smooth surfaces. These surfaces are typically the sides and front of the teeth that do not engage in chewing.
- K02.9: A general code, K02.9 stands for unspecified dental caries. It's employed when the specific type or location of the cavity is not clearly identified.
- K02.3: This code indicates arrested dental caries, referring to cases where the progression of tooth decay has been successfully halted due to treatment or natural factors.
- K02.0: Representing caries that are limited to the enamel, this code is similar to K02.51 but does not specify the tooth's surface where the decay is located.
- K02.1: This code signifies dental caries of the dentine, used when the decay has progressed beyond the enamel to reach the dentin layer, which lies beneath the enamel.
Each of these codes plays a crucial role in accurately diagnosing and billing dental caries. Understanding them can aid healthcare providers in delivering precise and effective treatment.
For more detailed information and an in-depth understanding of these codes, visit our Dental Caries ICD Codes resources and watch this explainer video below.
These resources are useful for healthcare providers and patients seeking to understand the intricacies of dental caries coding.

