ICD-10 Diagnosis Code H50.012

Monocular esotropia, left eye

Diagnosis Code H50.012

ICD-10: H50.012
Short Description: Monocular esotropia, left eye
Long Description: Monocular esotropia, left eye
This is the 2018 version of the ICD-10-CM diagnosis code H50.012

Valid for Submission
The code H50.012 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)
      • Other strabismus (H50)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code H50.012 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)

  • 124 - OTHER DISORDERS OF THE EYE WITH MCC
  • 125 - OTHER DISORDERS OF THE EYE WITHOUT MCC

Convert to ICD-9
  • 378.01 - Monocular esotropia (Approximate Flag)

Information for Patients


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.

There are many kinds of eye movement disorders. Two common ones are

  • Strabismus - a disorder in which the two eyes don't line up in the same direction. This results in "crossed eyes" or "walleye."
  • Nystagmus - fast, uncontrollable movements of the eyes, sometimes called "dancing eyes"

Some eye movement disorders are present at birth. Others develop over time and may be associated with other problems, such as injuries. Treatments include glasses, patches, eye muscle exercises, and surgery. There is no cure for some kinds of eye movement disorders, such as most kinds of nystagmus.

  • Cranial mononeuropathy III (Medical Encyclopedia)
  • Cranial mononeuropathy VI (Medical Encyclopedia)
  • Eye muscle repair (Medical Encyclopedia)
  • Nystagmus (Medical Encyclopedia)
  • Strabismus (Medical Encyclopedia)
  • Supranuclear ophthalmoplegia (Medical Encyclopedia)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Present on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

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