ICD-10-CM > K00-K95 > K00-K14 > K02 > K02.5 K02.5 Dental caries on pit and fissure surface Non-Billable/Non-Specific Applicable To Dental caries on chewing surface of tooth Codes K02.51Dental caries on pit and fissure surface limited to enamelK02.52Dental caries on pit and fissure surface penetrating into dentinK02.53Dental caries on pit and fissure surface penetrating into pulp