2026 ICD-10-CM Diagnosis Code H93.012Transient ischemic deafness, left ear

ICD-10-CM Codes›H60–H95›H90-H94›H93

ICD-10-CM H93.012
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H93.012 is a billable ICD-10-CM diagnosis code for transient ischemic deafness, left 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hearing loss.

Code Identity

ICD-10-CM Code
H93.012
Billable Status
Yes — Valid for Submission
Code Describes
Transient ischemic deafness, left ear
Short Description
Transient ischemic deafness, left ear
Same as the full description in the CMS dataset.
Parent Code
H93.01
Transient ischemic deafness

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH90-H94Other disorders of ear
CategoryH93Other disorders of ear, not elsewhere classified
This CodeH93.012Transient ischemic deafness, left ear

Clinical ClassificationClinical

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

CCSR EAR004
Hearing loss
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Hearing Disorders and Deafness

It's frustrating to be unable to hear well enough to enjoy talking with friends or family. Hearing disorders make it hard, but not impossible, to hear. They can often be helped. Deafness can keep you from hearing sound at all.

Read the full article at MedlinePlus

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

Convert H93.012 to ICD-9-CMHistory

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

ICD-9-CM
388.02 Trans ischemic deafness
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 H93.012Overview

Is H93.012 (Transient ischemic deafness) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report transient ischemic deafness, left ear on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H93.012 group to?

When transient ischemic deafness, left 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 H93.012?

Under the General Equivalence Mappings, transient ischemic deafness, left ear converts to ICD-9-CM 388.02 (trans ischemic deafness). 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.