2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 149. 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H83.90: its own notes plus those printed at Chapter 8. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 8 (H60-H95) Diseases of the ear and mastoid process applies to 653 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

General instructions on how these codes are used.

From Chapter 8 (H60-H95) Diseases of the ear and mastoid process applies to 653 codes
  • Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

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

Patient EducationClinical

Ear Disorders

An ear disorder is any condition that changes or harms the shape or structure of your ear. This can include abnormal ear shapes you're born with, injuries that change your ear's shape, and a growth on or in the ear.

The full article covers:

  • What is an ear disorder?
  • What causes ear disorders?
  • What are the symptoms of ear disorders?
  • How are ear disorders diagnosed?
  • How are ear disorders treated?
  • Can ear disorders be prevented?

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H83.90Overview

What is the ICD-10 code for unspecified disease of inner ear, unspecified ear?

The ICD-10-CM code for unspecified disease of inner ear, unspecified ear is H83.90 (sometimes written as H8390). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

What MS-DRG does H83.90 group to?

When unspecified disease of inner ear, unspecified ear is the principal diagnosis on an inpatient stay, it groups to MS-DRG 149 (dysequilibrium), which carries a relative weight of 0.7526. Higher weights mean higher Medicare reimbursement.

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.