ICD-10-CM Code H49.02

Third [oculomotor] nerve palsy, left eye

Version 2021 Billable Code

Valid for Submission

H49.02 is a billable code used to specify a medical diagnosis of third [oculomotor] nerve palsy, left eye. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code H49.02 might also be used to specify conditions or terms like partial oculomotor nerve palsy or partial palsy of left oculomotor nerve or total oculomotor nerve palsy or total palsy of left oculomotor nerve.

ICD-10:H49.02
Short Description:Third [oculomotor] nerve palsy, left eye
Long Description:Third [oculomotor] nerve palsy, left eye

Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Partial oculomotor nerve palsy
  • Partial palsy of left oculomotor nerve
  • Total oculomotor nerve palsy
  • Total palsy of left oculomotor nerve

Convert H49.02 to ICD-9

  • 378.51 - Partial third nerv palsy (Approximate Flag)
  • 378.52 - Total third nerve palsy (Approximate Flag)

Code Classification

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

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]