K14.3 Hypertrophy of tongue papillae

The ICD-10-CM code for Hypertrophy of tongue papillae is K14.3 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

11: Diseases of the digestive system (K00-K95)

Section

K00-K14: Diseases of oral cavity and salivary glands (K00-K14)

Category K14

10 codes (9 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K14.3:

• Glossophytia
• Coated tongue
• Hairy black tongue
• Glossotrichia
• Lingua › nigra (villosa)
• Anthracosis (lung) (occupational) › lingua
• Black › hairy tongue
• Acanthosis (acquired) (nigricans) › tongue

Inclusion Terms

• Black hairy tongue
• Coated tongue
• Hypertrophy of foliate papillae
• Lingua villosa nigra

U.S. Hospital Utilization

• An estimated 1,130 U.S. inpatient stays in 2023 included K14.3 among the documented diagnoses.

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 expansion

11. 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

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)