2026 ICD-10-CM Diagnosis Code R94.110Abnormal electro-oculogram [EOG]

ICD-10-CM Codes›R00–R99›R90-R94›R94

ICD-10-CM R94.110
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R94.110 is a billable ICD-10-CM diagnosis code for abnormal electro-oculogram [EOG]. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. Coders also document this condition as electrooculogram abnormal. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abnormal findings without diagnosis.

Code Identity

ICD-10-CM Code
R94.110
Billable Status
Yes — Valid for Submission
Code Describes
Abnormal electro-oculogram [EOG]
Short Description
Abnormal electro-oculogram [EOG]
Same as the full description in the CMS dataset.
Parent Code
R94.11
Abnormal results of function studies of eye

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR90-R94Abnormal findings on diagnostic imaging and in function studies, without diagnosis
CategoryR94Abnormal results of function studies
This CodeR94.110Abnormal electro-oculogram [EOG]

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Electrooculogram abnormal
  • Electro-oculogram light rise
  • Electro-oculogram pattern - finding

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Abnormal, abnormality, abnormalities
      • electro-oculogram [EOG]

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SYM017
Abnormal findings without diagnosis
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Retinal Disorders

The retina is a layer of tissue in the back of your eye that senses light and sends images to your brain. In the center of this nerve tissue is the macula. It provides the sharp, central vision needed for reading, driving and seeing fine detail.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert R94.110 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
794.12 Abnorm electro-oculogram
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R94.110Overview

Is R94.110 (Abnormal results of function studies of eye) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report abnormal electro-oculogram [EOG] on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does R94.110 group to?

When abnormal electro-oculogram [EOG] is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R94.110 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the abnormal electro-oculogram [EOG] is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R94.110?

Under the General Equivalence Mappings, abnormal electro-oculogram [EOG] converts to ICD-9-CM 794.12 (abnorm electro-oculogram). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.