Dental caries on pit and fissure surface limited to enamel

This code signifies the presence of tooth decay, specifically affecting the grooves and depressions (pits and fissures) on the chewing surfaces of teeth. The decay is superficial, meaning it has not progressed beyond the outermost layer of the tooth, the enamel.

Apply this code when documentation indicates initial carious lesions confined to the enamel of pits and fissures. This is typically diagnosed during a clinical examination with visual inspection and sometimes radiographs. Supporting documentation should explicitly state "enamel caries," "pit and fissure caries," or "incipient caries" limited to the enamel.

• Differentiate from caries extending into dentin (K02.52) or smooth surface caries (K02.6-).
• Ensure the documentation clearly specifies "pit and fissure" and "limited to enamel."
• Do not use for arrested caries or white spot lesions without evidence of cavitation.