2026 ICD-10-CM Diagnosis Code H50Other strabismus

ICD-10-CM Codes›H00–H59›H49-H52›H50

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

H50 is a non-billable ICD-10-CM category code for other strabismus, so it cannot be submitted on claims. Use a more specific code from this category instead, such as H50.00, H50.011, H50.012, and H50.021.

Code Identity

ICD-10-CM Code
H50
Billable Status
No — Non-Billable Category
Code Describes
Other strabismus
Short Description
Other strabismus
Same as the full description in the CMS dataset.
Chapter
H49-H52
Disorders of ocular muscles, binocular movement, accommodation and refraction

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction
CategoryH50Other strabismus
This CodeH50Other strabismus

Specific Coding for Other strabismusOverview

Non-specific codes like H50 require more characters. Use one of these billable codes instead:

  • H50.0 for Esotropia

  • Use H50.00 for Unspecified esotropia

  • H50.01 for Monocular esotropia

  • H50.02 for Monocular esotropia with A pattern

  • H50.03 for Monocular esotropia with V pattern

  • H50.04 for Monocular esotropia with other noncomitancies

  • Use H50.05 for Alternating esotropia

  • Use H50.06 for Alternating esotropia with A pattern

  • Use H50.07 for Alternating esotropia with V pattern

  • Use H50.08 for Alternating esotropia with other noncomitancies

  • H50.1 for Exotropia

  • Use H50.10 for Unspecified exotropia

  • H50.11 for Monocular exotropia

  • H50.12 for Monocular exotropia with A pattern

  • H50.13 for Monocular exotropia with V pattern

  • H50.14 for Monocular exotropia with other noncomitancies

  • Use H50.15 for Alternating exotropia

  • Use H50.16 for Alternating exotropia with A pattern

  • Use H50.17 for Alternating exotropia with V pattern

  • Use H50.18 for Alternating exotropia with other noncomitancies

  • H50.2 for Vertical strabismus

  • Use H50.21 for Vertical strabismus, right eye

  • Use H50.22 for Vertical strabismus, left eye

  • H50.3 for Intermittent heterotropia

  • Use H50.30 for Unspecified intermittent heterotropia

  • H50.31 for Intermittent monocular esotropia

  • Use H50.32 for Intermittent alternating esotropia

  • H50.33 for Intermittent monocular exotropia

  • Use H50.34 for Intermittent alternating exotropia

  • H50.4 for Other and unspecified heterotropia

  • Use H50.40 for Unspecified heterotropia

  • H50.41 for Cyclotropia

  • Use H50.42 for Monofixation syndrome

  • Use H50.43 for Accommodative component in esotropia

  • H50.5 for Heterophoria

  • Use H50.50 for Unspecified heterophoria

  • Use H50.51 for Esophoria

  • Use H50.52 for Exophoria

  • Use H50.53 for Vertical heterophoria

  • Use H50.54 for Cyclophoria

  • Use H50.55 for Alternating heterophoria

  • H50.6 for Mechanical strabismus

  • Use H50.60 for Mechanical strabismus, unspecified

  • H50.61 for Brown's sheath syndrome

  • H50.62 for Inferior oblique muscle entrapment

  • H50.63 for Inferior rectus muscle entrapment

  • H50.64 for Lateral rectus muscle entrapment

  • H50.65 for Medial rectus muscle entrapment

  • H50.66 for Superior oblique muscle entrapment

  • H50.67 for Superior rectus muscle entrapment

  • H50.68 for Extraocular muscle entrapment, unspecified

  • Use H50.69 for Other mechanical strabismus

  • H50.8 for Other specified strabismus

  • H50.81 for Duane's syndrome

  • Use H50.89 for Other specified strabismus

  • Use H50.9 for Unspecified strabismus

Clinical InformationClinical

  • Esotropia

    a form of ocular misalignment characterized by an excessive convergence of the visual axes, resulting in a cross-eye appearance. an example of this condition occurs when paralysis of the lateral rectus muscle causes an abnormal inward deviation of one eye on attempted gaze.

  • Exotropia

    a form of ocular misalignment where the visual axes diverge inappropriately. for example, medial rectus muscle weakness may produce this condition as the affected eye will deviate laterally upon attempted forward gaze. an exotropia occurs due to the relatively unopposed force exerted on the eye by the lateral rectus muscle, which pulls the eye in an outward direction.

  • Strabismus

    misalignment of the visual axes of the eyes. in comitant strabismus the degree of ocular misalignment does not vary with the direction of gaze. in noncomitant strabismus the degree of misalignment varies depending on direction of gaze or which eye is fixating on the target. (miller, walsh & hoyt's clinical neuro-ophthalmology, 4th ed, p641)

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.

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 H50Overview

Is H50 (Other strabismus) a billable code?

No. This is a category header that groups the codes for other strabismus, and headers cannot be submitted on claims. Claims for other strabismus need a more specific code from this category, such as H50.00, H50.011, and H50.012.