2026 ICD-10-CM Diagnosis Code H93.099Unspecified degenerative and vascular disorders of unspecified ear

ICD-10-CM Codes›H60–H95›H90-H94›H93

ICD-10-CM H93.099
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H93.099 is a billable ICD-10-CM diagnosis code for unspecified degenerative and vascular disorders of unspecified ear. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 154 through 156. Coders also document this condition as degenerative disorder of ear. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified disorders of the ear.

Code Identity

ICD-10-CM Code
H93.099
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified degenerative and vascular disorders of unspecified ear
Short Description
Unsp degenerative and vascular disorders of unspecified ear
Parent Code
H93.09
Unspecified degenerative and vascular disorders of ear

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH90-H94Other disorders of ear
CategoryH93Other disorders of ear, not elsewhere classified
This CodeH93.099Unspecified degenerative and vascular disorders of unspecified ear

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Degenerative disorder of ear
  • Inherited cochlear degeneration

Clinical ClassificationClinical

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

CCSR EAR006
Other specified and unspecified disorders of the ear
Default principal diagnosis: inpatient Yes · outpatient Yes

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

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Convert H93.099 to ICD-9-CMHistory

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

ICD-9-CM
388.00 Degen/vascul dis ear 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 H93.099Overview

Is H93.099 (Unspecified degenerative and vascular disorders of ear) a billable code?

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

What MS-DRG does H93.099 group to?

When unspecified degenerative and vascular disorders of unspecified ear is the principal diagnosis on an inpatient stay, it groups to MS-DRG 154, 155, 156, with relative weights from 0.6911 to 1.5635 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H93.099?

Under the General Equivalence Mappings, unspecified degenerative and vascular disorders of unspecified ear converts to ICD-9-CM 388.00 (degen/vascul dis ear 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.