K02.51 Dental caries on pit and fissure surface limited to enamel

Billable ICD-10-CM code, FY2026.

Applicable to

• White spot lesions [initial caries] on pit and fissure surface of tooth

Applies from K02 Dental caries

Includes

• caries of dentine
• dental cavities
• early childhood caries
• pre-eruptive caries
• recurrent caries (dentino enamel junction) (enamel) (to the pulp)
• tooth decay

Applies from K02.5 Dental caries on pit and fissure surface

Applicable to

• Dental caries on chewing surface of tooth

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 521.01 Dental caries limited to enamel (approximate)
• 521.06 Dental caries pit and fissure (approximate)

Code annotations containing back-references to K02.51

Back-references to K02

• Type 2 Excludes: K03 Other diseases of hard tissues of teeth ("dental caries (K02.-)")

Diagnosis Index entries for K02.51

• Caries › dental (dentino enamel junction) (early childhood) (of dentine) (pre-eruptive) (recurrent) (to the pulp) › chewing surface › limited to enamel
• Caries › dental (dentino enamel junction) (early childhood) (of dentine) (pre-eruptive) (recurrent) (to the pulp) › coronal surface › chewing surface › limited to enamel
• Caries › dental (dentino enamel junction) (early childhood) (of dentine) (pre-eruptive) (recurrent) (to the pulp) › coronal surface › pit and fissure surface › limited to enamel
• Caries › dental (dentino enamel junction) (early childhood) (of dentine) (pre-eruptive) (recurrent) (to the pulp) › pit and fissure surface › limited to enamel
• Caries › initial (tooth) › chewing surface
• Caries › initial (tooth) › pit and fissure surface
• Lesion (s) (nontraumatic) › tooth, teeth › white spot › chewing surface
• Lesion (s) (nontraumatic) › tooth, teeth › white spot › pit and fissure surface
• Lesion (s) (nontraumatic) › white spot (tooth) › chewing surface
• Lesion (s) (nontraumatic) › white spot (tooth) › pit and fissure surface
• White › spot lesions, teeth › chewing surface
• White › spot lesions, teeth › pit and fissure surface

Nearby codes

• K02 Dental caries
• K02.3 Arrested dental caries
• K02.5 Dental caries on pit and fissure surface
• K02.51 Dental caries on pit and fissure surface limited to enamel (this code)
• K02.52 Dental caries on pit and fissure surface penetrating into dentin
• K02.53 Dental caries on pit and fissure surface penetrating into pulp
• K02.6 Dental caries on smooth surface
• K02.61 Dental caries on smooth surface limited to enamel
• K02.62 Dental caries on smooth surface penetrating into dentin