K02.51 Dental caries on pit and fissure surface limited to enamel
The ICD-10-CM code for Dental caries on pit and fissure surface limited to enamel is K02.51 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- K00-K14: Diseases of oral cavity and salivary glands (K00-K14)
- Category K02
- 12 codes (9 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to K02.51:
- Caries › initial (tooth) › pit and fissure surface
- White › spot lesions, teeth › chewing surface
- Lesion (s) (nontraumatic) › white spot (tooth) › chewing surface
- White › spot lesions, teeth › pit and fissure surface
- Lesion (s) (nontraumatic) › white spot (tooth) › pit and fissure surface
- Caries › initial (tooth) › chewing surface
- 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) › pit and fissure surface › limited to enamel
Inclusion Terms
- White spot lesions [initial caries] on pit and fissure surface of tooth
U.S. Hospital Utilization
K02.51 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Chapter 11 reserved for future expansion11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026