ICD-10-CM Code R94.118

Abnormal results of other function studies of eye

Version 2020 Billable Code No Valid Principal Dx

Valid for Submission

R94.118 is a billable code used to specify a medical diagnosis of abnormal results of other function studies of eye. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code R94.118 might also be used to specify conditions or terms like abnormal electronystagmogram, decreased tear film break-up time, eye muscle imbalance, finding of ocular balance, j16, o/e - visual acuity left eye = 6/48, etc

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Short Description:Abnormal results of other function studies of eye
Long Description:Abnormal results of other function studies of eye

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 R94.118 are found in the index:


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

  • Abnormal electronystagmogram
  • Decreased tear film break-up time
  • Eye muscle imbalance
  • Finding of ocular balance
  • J16
  • O/E - visual acuity left eye = 6/48
  • O/E - visual acuity left eye = 6/7.5
  • O/E - visual acuity right eye = 6/48
  • O/E - visual acuity right eye = 6/7.5
  • Ophthalmic test finding
  • Tear film finding
  • Tonometry abnormal
  • Visual test finding
  • Visual testing abnormal

Convert R94.118 to ICD-9

  • 794.19 - Abn periph nerv stud NEC (Approximate Flag)

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)
      • Abnormal results of function studies (R94)

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

Information for Patients

Eye Diseases

Some eye problems are minor and don't last long. But some can lead to a permanent loss of vision.

Common eye problems include

  • Refractive errors
  • Cataracts - clouded lenses
  • Optic nerve disorders, including glaucoma
  • Retinal disorders - problems with the nerve layer at the back of the eye
  • Macular degeneration - a disease that destroys sharp, central vision
  • Diabetic eye problems
  • Conjunctivitis - an infection also known as pinkeye

Your best defense is to have regular checkups, because eye diseases do not always have symptoms. Early detection and treatment could prevent vision loss. See an eye care professional right away if you have a sudden change in vision, if everything looks dim, or if you see flashes of light. Other symptoms that need quick attention are pain, double vision, fluid coming from the eye, and inflammation.

NIH: National Eye Institute

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