ICD-10-CM Code H51.2

Internuclear ophthalmoplegia

Version 2021 Non-Billable Code

Not Valid for Submission

H51.2 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of internuclear ophthalmoplegia. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions.

ICD-10:H51.2
Short Description:Internuclear ophthalmoplegia
Long Description:Internuclear ophthalmoplegia

Consider the following ICD-10 codes with a higher level of specificity:

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H51.2 are found in the index:


Clinical Information

  • OCULAR MOTILITY DISORDERS-. disorders that feature impairment of eye movements as a primary manifestation of disease. these conditions may be divided into infranuclear nuclear and supranuclear disorders. diseases of the eye muscles or oculomotor cranial nerves iii iv and vi are considered infranuclear. nuclear disorders are caused by disease of the oculomotor trochlear or abducens nuclei in the brain stem. supranuclear disorders are produced by dysfunction of higher order sensory and motor systems that control eye movements including neural networks in the cerebral cortex; basal ganglia; cerebellum; and brain stem. ocular torticollis refers to a head tilt that is caused by an ocular misalignment. opsoclonus refers to rapid conjugate oscillations of the eyes in multiple directions which may occur as a parainfectious or paraneoplastic condition e.g. opsoclonus myoclonus syndrome. adams et al. principles of neurology 6th ed p240

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)
      • Other disorders of binocular movement (H51)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

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)

[Learn More]