2026 ICD-10-CM Diagnosis Code K14.0Glossitis

ICD-10-CM Codes›K00–K95›K00-K14›K14

ICD-10-CM K14.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K14.0 is a billable ICD-10-CM diagnosis code for glossitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 157 through 159. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury, Diseases of mouth; excluding dental, and Nontraumatic dental conditions.

Code Identity

ICD-10-CM Code
K14.0
Billable Status
Yes — Valid for Submission
Code Describes
Glossitis
Short Description
Glossitis
Same as the full description in the CMS dataset.
Parent Code
K14
Diseases of tongue

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK00-K14Diseases of oral cavity and salivary glands
CategoryK14Diseases of tongue
This CodeK14.0Glossitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abscess of oral soft tissue
  • Abscess of tongue
  • Acute glossitis
  • Cellulitis of oral soft tissues
  • Cellulitis of tongue
  • Chronic glossitis
  • Folate deficiency glossitis
  • Glossitis
  • Glossitis caused by oil of cinnamon
  • Interstitial glossitis
  • Iron deficiency glossitis
  • Lingual myositis
  • Riga-Fede disease
  • Transient lingual papillitis
  • Traumatic oral ulceration
  • Traumatic ulceration of tongue
  • Traumatic ulcerative granuloma of tongue with stromal eosinophilia
  • Ulcer on tongue
  • Vitamin B12 deficiency glossitis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Abscess of tongue
  • Ulceration (traumatic) of tongue

Type 1 Excludes

  • atrophic glossitis K14.4

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • lingual
    • Abscess(connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
      • tongue (staphylococcal)
    • Aphthae, aphthous
      • cachectic
    • Disease, diseased
      • Fede's
    • Disease, diseased
      • Riga (-Fede) (cachectic aphthae)
    • Fede's disease
    • Gangrene, gangrenous(connective tissue) (dropsical) (dry) (moist) (skin) (ulcer)
      • glossitis
    • Gingivoglossitis
    • Glossitis(chronic superficial) (gangrenous) (Moeller's)
    • Glossitis(chronic superficial) (gangrenous) (Moeller's)
      • cortical superficial, sclerotic
    • Glossitis(chronic superficial) (gangrenous) (Moeller's)
      • interstitial, sclerous
    • Glossitis(chronic superficial) (gangrenous) (Moeller's)
      • superficial, chronic
    • Infection, infected, infective(opportunistic)
      • tongue NEC
    • Inflammation, inflamed, inflammatory(with exudation)
      • tongue
    • Moeller's glossitis
    • Papillitis
      • tongue
    • Riga(-Fede) disease
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • frenum (tongue)
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • tongue (traumatic)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DEN001
Any dental condition including traumatic injury
Default principal diagnosis: inpatient No · outpatient No
CCSR DIG003
Diseases of mouth; excluding dental
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR DEN002
Nontraumatic dental conditions
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Glossitis

    inflammation of the tongue.

  • Glossitis, Benign Migratory

    an idiopathic disorder of the tongue characterized by the loss of filiform papillae leaving reddened areas of circinate macules bound by a white band. the lesions heal, then others erupt.

  • Benign Migratory Glossitis|Geographic Tongue

    a benign condition characterized by the development of irregular patches in the surface of the tongue resulting in a map-like appearance. the patches migrate from day to day and usually resolve without treatment.

Patient EducationClinical

Tongue Disorders

Your tongue helps you taste, swallow, and chew. You also use it to speak. Your tongue is made up of many muscles. The upper surface contains your taste buds.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K14.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
529.0 Glossitis
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K14.0Overview

Is K14.0 (Diseases of tongue) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report glossitis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K14.0 group to?

When glossitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 157, 158, 159, with relative weights from 0.7085 to 1.7168 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K14.0?

Under the General Equivalence Mappings, glossitis converts to ICD-9-CM 529.0 (glossitis). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.