2026 ICD-10-CM Diagnosis Code H50.89Other specified strabismus

ICD-10-CM Codes›H00–H59›H49-H52›H50

ICD-10-CM H50.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H50.89 is a billable ICD-10-CM diagnosis code for other specified strabismus. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Strabismus.

Code Identity

ICD-10-CM Code
H50.89
Billable Status
Yes — Valid for Submission
Code Describes
Other specified strabismus
Short Description
Other specified strabismus
Same as the full description in the CMS dataset.
Parent Code
H50.8
Other specified strabismus

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction
CategoryH50Other strabismus
This CodeH50.89Other specified strabismus

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Accommodative strabismus
  • Alternating hypertropia
  • Aplasia of bone of radius and/or ulna
  • Aplasia of radius
  • Congenital absence of radius
  • Congenital pseudostrabismus
  • Constant vertical heterotropia
  • Cyclotropia
  • Dissociated vertical deviation
  • Duane retraction syndrome with congenital deafness
  • Duane syndrome with vertical deviation
  • Duane-radial ray syndrome
  • Duane's syndrome
  • Duane's syndrome, type 1
  • Duane's syndrome, type 2
  • Duane's syndrome, type 3
  • Excyclotropia
  • Hypertropia
  • Incomitant hypertropia
  • Incomitant hypotropia
  • Incyclotropia
  • Manifest vertical squint
  • Manifest vertical squint, eye down
  • Manifest vertical squint, eye up
  • Microstrabismus
  • Non-comitant strabismus
  • Nonparalytic strabismus
  • Partial radial absence
  • Pseudo-abducens palsy
  • Pseudoexotropia
  • Pseudostrabismus
  • Strabismus fixus
  • Strabismus in neuromuscular disorder
  • V-pattern strabismus
  • X pattern strabismus
  • Y pattern strabismus

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.

    • Strabismus(congenital) (nonparalytic)
      • specified type NEC

Clinical ClassificationClinical

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

CCSR EYE007
Strabismus
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Pseudostrabismus

    the false appearance of misalignment of the eyes.

  • Hypertropia

    vertical strabismus in which there is permanent upward deviation of the visual axis of one eye.

Patient EducationClinical

Eye Movement Disorders

When you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly.

Read the full article at MedlinePlus

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

Convert H50.89 to ICD-9-CMHistory

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

ICD-9-CM
378.73 Neuromuscle dis strabism
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 H50.89Overview

Is H50.89 (Other specified strabismus) a billable code?

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

What is the ICD-9 equivalent of H50.89?

Under the General Equivalence Mappings, other specified strabismus converts to ICD-9-CM 378.73 (neuromuscle dis strabism). 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.