2026 ICD-10-CM Diagnosis Code K14.8Other diseases of tongue

ICD-10-CM Codes›K00–K95›K00-K14›K14

ICD-10-CM K14.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K14.8 is a billable ICD-10-CM diagnosis code for other diseases of tongue. 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
K14.8
Billable Status
Yes — Valid for Submission
Code Describes
Other diseases of tongue
Short Description
Other diseases of tongue
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 CodeK14.8Other diseases of tongue

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired anomaly of tongue
  • Acquired hypertrophy of tongue
  • Acquired macroglossia
  • Anterior tongue thrust
  • Atrophy of tongue
  • Beefy red tongue
  • Bilateral paralysis of tongue
  • Biting of oral mucosa
  • Blue tongue
  • Cellulitis of floor of mouth
  • Cellulitis of oral soft tissues
  • Cellulitis of sublingual space
  • Constant movement of tongue
  • Crenated tongue
  • Cyst of oral soft tissue
  • Cyst of tongue
  • Denervation atrophy of muscle
  • Denervation atrophy of tongue
  • Dermatosis of tongue
  • Dislocation of tongue
  • Dry tongue
  • Elevation of tongue
  • Enlargement of root of tongue
  • Enlargement of tongue
  • Erosion of tongue caused by citrus fruit
  • Finding of moistness of tongue
  • Finding of size of tongue
  • Finding of surface of tongue
  • Finding of symmetry of tongue
  • Furred tongue
  • Glossocele
  • Glossoptosis
  • Hematoma of oral cavity
  • Hematoma of tongue
  • Hemiatrophy of tongue
  • Hyperactive tongue
  • Hypoesthesia of tongue
  • Increased protrusion of tongue
  • Kyphoscoliosis, lateral tongue atrophy, hereditary spastic paraplegia syndrome
  • Kyphosis, lateral tongue atrophy, myofibrillar myopathy syndrome
  • Large fungiform papillae
  • Lateral deviation of tongue on protrusion
  • Lateral tongue thrust
  • Local exogenous pigmentation of tongue
  • Ludwig's angina
  • Macroglossia due to amyloidosis
  • Magenta tongue
  • Motor function of tongue - finding
  • Mouth polyp
  • Numbness of tongue
  • Oral frictional keratosis
  • Overgrowth of filiform papillae
  • Pale tongue
  • Paralysis of left side of tongue
  • Paralysis of right side of tongue
  • Paralysis of tongue
  • Paresthesia of tongue
  • Polyp of tongue
  • Posterior tongue thrust
  • Protrusion of tongue - finding
  • Pruritus of oral soft tissues
  • Pruritus of tongue
  • Raspberry tongue
  • Retraction of tongue
  • Ruminating movements of tongue
  • Scar of tongue
  • Small tongue
  • Split frenulum of tongue
  • Sublingual keratosis
  • Tongue asymmetrical
  • Tongue biting
  • Tongue deviation disorder of twelfth cranial nerve
  • Tongue discoloration
  • Tongue nodule
  • Tongue protrusion disorder of twelfth cranial nerve
  • Tongue thrusting
  • Tremor of tongue
  • Trombone tongue
  • Twelfth cranial nerve finding
  • Vascular tongue
  • Woody tongue

Tabular List NotesGuidance

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

Inclusion Terms

  • Atrophy of tongue
  • Crenated tongue
  • Enlargement of tongue
  • Glossocele
  • Glossoptosis
  • Hypertrophy of tongue

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.

    • Adhesions, adhesive(postinfective)
      • tongue, congenital (to gum or roof of mouth)
        • acquired
    • Atrophy, atrophic(of)
      • tongue (senile)
    • Cicatrix(adherent) (contracted) (painful) (vicious)
      • tongue
    • Crenated tongue
    • Cyst(colloid) (mucous) (simple) (retention)
      • tongue
    • Deformity
      • tongue (congenital)
        • acquired
    • Disease, diseased
      • tongue
        • specified NEC
    • Enlargement, enlarged
      • tongue
    • Glossocele
    • Glossoncus
    • Glossoplegia
    • Glossoptosis
    • Hemiatrophy
      • tongue
    • Hemorrhage, hemorrhagic(concealed)
      • tongue
    • Hypertrophy, hypertrophic
      • frenulum, frenum (tongue)
    • Hypertrophy, hypertrophic
      • tongue
    • Infection, infected, infective(opportunistic)
      • thyroglossal duct
    • Macroglossia(congenital)
      • acquired
    • Paralysis, paralytic(complete) (incomplete)
      • tongue
    • Spasm(s), spastic, spasticity
      • tongue
    • Thickening
      • tongue

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

  • Ludwig's Angina

    severe cellulitis of the submaxillary space with secondary involvement of the perimandibular spaces. it usually results from infection in the lower molar area or from an infection following a penetrating injury to the mouth floor.

  • Glossoptosis

    posterior displacement of the tongue toward the pharynx. it is often a feature in syndromes such as in pierre robin syndrome and down syndrome and associated with airway obstruction during sleep (obstructive sleep apneas).

  • Pierre Robin Syndrome

    congenital malformation characterized by micrognathia or retrognathia; glossoptosis and cleft palate. the mandibular abnormalities often result in difficulties in sucking and swallowing. the syndrome may be isolated or associated with other syndromes (e.g., andersen syndrome; campomelic dysplasia). developmental mis-expression of sox9 transcription factor gene on chromosome 17q and its surrounding region is associated with the syndrome.

  • Mouth Floor

    the area of the mouth beneath the tongue.

  • Glossoptosis

    an abnormal posterior placement of the tongue involving downward displacement or retraction, which may cause airway disruption.

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 K14.8 to ICD-9-CMHistory

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

ICD-9-CM
529.8 Tongue disorder NEC
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 K14.8Overview

Is K14.8 (Diseases of tongue) a billable code?

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

What MS-DRG does K14.8 group to?

When other diseases of tongue 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 K14.8?

Under the General Equivalence Mappings, other diseases of tongue converts to ICD-9-CM 529.8 (tongue disorder NEC). 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.