2026 ICD-10-CM Diagnosis Code H05.89Other disorders of orbit

ICD-10-CM Codes›H00–H59›H00-H05›H05

ICD-10-CM H05.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H05.89 is a billable ICD-10-CM diagnosis code for other disorders of orbit. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Oculofacial plastics and orbital conditions.

Code Identity

ICD-10-CM Code
H05.89
Billable Status
Yes — Valid for Submission
Code Describes
Other disorders of orbit
Short Description
Other disorders of orbit
Same as the full description in the CMS dataset.
Parent Code
H05.8
Other disorders of orbit

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH00-H05Disorders of eyelid, lacrimal system and orbit
CategoryH05Disorders of orbit
This CodeH05.89Other disorders of orbit

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Absence of roof of orbit
  • Apparent excessive orbital separation
  • Arteriovenous abnormality of orbit
  • Bilateral eye socket contracture
  • Bilateral orbital deformity
  • Bilateral restrictive strabismus due to orbital fibrosis
  • Cholesteatoma of orbit
  • Contracture of left eye socket
  • Contracture of right eye socket
  • Diffuse contracture of eye socket with surface loss
  • Diffuse contracture of eye socket with volume and surface loss
  • Diffuse contracture of eye socket with volume loss
  • Excess orbital fat
  • Eye socket contracture
  • High orbit
  • Left orbital deformity
  • Mechanical strabismus due to musculofascial disorder
  • Mechanical strabismus due to orbital pulley disorder
  • Orbit vertical asymmetry - finding
  • Orbital emphysema
  • Orbital fat hernia
  • Orbital fat hernia due to dermatochalasis
  • Orbital floor syndrome
  • Orbital ischemic syndrome
  • Orbital margin discontinuity
  • Orbital margin finding
  • Orbital separation
  • Postenucleation orbital drainage
  • Post-enucleation socket syndrome
  • Resistance to retropulsion of globe
  • Restrictive ophthalmopathy
  • Restrictive strabismus
  • Restrictive strabismus due to orbital fibrosis
  • Restrictive strabismus of left eye due to orbital fibrosis
  • Restrictive strabismus of right eye due to orbital fibrosis
  • Right orbital deformity
  • True excessive orbital separation

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • orbit
        • specified type NEC

Clinical ClassificationClinical

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

CCSR EYE008
Oculofacial plastics and orbital conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Orbital Emphysema

    the presence of air or gas in the subcutaneous tissue of the orbit of the eye.

Patient EducationClinical

Eye Diseases

Even if your eyes feel healthy, you could have a problem and not know it. That's why regular eye exams are so important. Refractive errors are the most common type of vision problem that makes it hard to see clearly. But some eye conditions or diseases don't have any symptoms and can lead to a permanent loss of vision.

The full article covers:

  • What diseases can affect the eye?
  • What are the symptoms of eye diseases?
  • Who is more likely to develop eye diseases?
  • What are the treatments for eye diseases?
  • Can eye diseases be prevented?

Read the full article at MedlinePlus

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

Convert H05.89 to ICD-9-CMHistory

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

ICD-9-CM
376.89 Orbital disorders NEC
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 H05.89Overview

Is H05.89 (Other disorders of orbit) a billable code?

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

What MS-DRG does H05.89 group to?

When other disorders of orbit is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H05.89?

Under the General Equivalence Mappings, other disorders of orbit converts to ICD-9-CM 376.89 (orbital disorders NEC). 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.