K02: Dental caries

K02.3: Arrested dental caries

If a tooth has been damaged by pathogens, this is called caries. If you have plaque or eat sugar frequently, the tooth can be damaged by pathogens more quickly. Furthermore, some people’s teeth are generally more susceptible to caries.

In your case, the topmost layer of the tooth was damaged.

If the topmost layer of the tooth is damaged, the damaged region can then appear brown, for example.