2026 ICD-10-CM Diagnosis Code H80.11Otosclerosis involving oval window, obliterative, right ear

ICD-10-CM Codes›H60–H95›H80-H83›H80

ICD-10-CM H80.11
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H80.11 is a billable ICD-10-CM diagnosis code for otosclerosis involving oval window, obliterative, right 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 Diseases of inner ear and related conditions.

Code Identity

ICD-10-CM Code
H80.11
Billable Status
Yes — Valid for Submission
Code Describes
Otosclerosis involving oval window, obliterative, right ear
Short Description
Otosclerosis involving oval window, obliterative, right ear
Same as the full description in the CMS dataset.
Parent Code
H80.1
Otosclerosis involving oval window, obliterative

Code Classification

ChapterH60–H95Diseases of the ear and mastoid process
SectionH80-H83Diseases of inner ear
CategoryH80Otosclerosis
This CodeH80.11Otosclerosis involving oval window, obliterative, right ear

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

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 H80.11 to ICD-9-CMHistory

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

ICD-9-CM
387.1 Otoscler-oval wndw oblit
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 H80.11Overview

Is H80.11 (Otosclerosis involving oval window, obliterative) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report otosclerosis involving oval window, obliterative, right ear on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H80.11 group to?

When otosclerosis involving oval window, obliterative, right 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 H80.11?

Under the General Equivalence Mappings, otosclerosis involving oval window, obliterative, right ear converts to ICD-9-CM 387.1 (otoscler-oval wndw oblit). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.