2026 ICD-10-CM Diagnosis Code H83.90Unspecified disease of inner ear, unspecified ear

ICD-10-CM Codes›H60–H95›H80-H83›H83

ICD-10-CM H83.90
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H83.90 is a billable ICD-10-CM diagnosis code for unspecified disease of inner ear, unspecified ear. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as conductive hearing loss due to disorder of inner ear. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Diseases of inner ear and related conditions.

Code Identity

ICD-10-CM Code
H83.90
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified disease of inner ear, unspecified ear
Short Description
Unspecified disease of inner ear, unspecified ear
Same as the full description in the CMS dataset.
Parent Code
H83.9
Unspecified disease of inner ear

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH80-H83Diseases of inner ear
CategoryH83Other diseases of inner ear
This CodeH83.90Unspecified disease of inner ear, unspecified ear

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Conductive hearing loss due to disorder of inner ear
  • Disorder of inner ear
  • Ototoxicity
  • Ototoxicity - labyrinthine

Clinical ClassificationClinical

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

CCSR EAR003
Diseases of inner ear and related conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Ototoxicity

    damage to the ear or its function secondary to exposure to toxic substances such as drugs used in chemotherapy; immunotherapy; or radiation.

  • Ototoxicity

    damage to the inner ear as a result of exposure to drugs or chemicals.

  • Phototoxicity Study|PHOTOTOXICITY

    a study of the effect of an agent on the skin or eyes, such that it induces a sensitivity to sunlight or other forms of light.

  • Phototoxicity|phototoxicity

    a nonimmunologic, chemically induced type of photosensitivity.

Patient EducationClinical

Ear Disorders

Your ear has three main parts: outer, middle and inner. You use all of them in hearing. Sound waves come in through your outer ear. They reach your middle ear, where they make your eardrum vibrate. The vibrations are transmitted through three tiny bones, called ossicles, in your middle ear.

Read the full article at MedlinePlus

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

Convert H83.90 to ICD-9-CMHistory

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

ICD-9-CM
386.9 Vertiginous synd NOS
Approximate The match is approximate rather than exact.

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 H83.90Overview

Is H83.90 (Unspecified disease of inner ear) a billable code?

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

What is the ICD-9 equivalent of H83.90?

Under the General Equivalence Mappings, unspecified disease of inner ear, unspecified ear converts to ICD-9-CM 386.9 (vertiginous synd NOS). The mapping is approximate, so confirm the match fits the documentation.

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.