2027 ICD-10-CM Diagnosis Code H50Other strabismus

ICD-10-CM Codes›H00–H59›H49-H52›H50

ICD-10-CM H50
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H50: its own notes plus those printed at block H49-H52 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block H49-H52 Disorders of ocular muscles, binocular movement, accommodation and refraction applies to 150 codes
  • nystagmus and other irregular eye movements (H55)
From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Notes

General instructions on how these codes are used.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name H50, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming H50: its condition is not part of those codes, and both may be reported when the patient has both.

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H50Overview

What is the ICD-10 code for other strabismus?

H50 is the ICD-10-CM category for other strabismus, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.