2026 ICD-10-CM Diagnosis Code K14.2Median rhomboid glossitis

ICD-10-CM Codes›K00–K95›K00-K14›K14

ICD-10-CM K14.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K14.2 is a billable ICD-10-CM diagnosis code for median rhomboid 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. Coders also document this condition as persistent tuberculum impar. 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
K14.2
Billable Status
Yes — Valid for Submission
Code Describes
Median rhomboid glossitis
Short Description
Median rhomboid 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 CodeK14.2Median rhomboid glossitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Persistent tuberculum impar

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.

    • Glossitis(chronic superficial) (gangrenous) (Moeller's)
      • median rhomboid
    • Median
      • rhomboid glossitis

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

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 K14.2 to ICD-9-CMHistory

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

ICD-9-CM
529.2 Med rhomboid 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 K14.2Overview

Is K14.2 (Diseases of tongue) a billable code?

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

What MS-DRG does K14.2 group to?

When median rhomboid 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 K14.2?

Under the General Equivalence Mappings, median rhomboid glossitis converts to ICD-9-CM 529.2 (med rhomboid 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.