What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 96217-5: Left optic disc and retinal nerve fiber layer Function compared to previous assessment by ERG

Name: LOINC Code 96217-5: Left optic disc and retinal nerve fiber layer Function compared to previous assessment by ERG
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:27.590Z

96217-5 is a LOINC code used to identify Left optic disc and retinal nerve fiber layer Function compared to previous assessment by ERG in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Function compared to previous assessment. It is commonly used with the system or sample type Optic disc+retinal nerve fiber layer.left.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Function compared to previous assessment. It is commonly used with the system or sample type Optic disc+retinal nerve fiber layer.left.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Observation
Method: Electroretinogram

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Left optic disc and retinal nerve fiber layer Function compared to previous assessment by ERG
Function compared to previous assessment
Comp func; ERG; EYE; EYE.ERG; FCN; Fibers; Finding; Findings; Func; Funct; L; L optic disc+RNFL; LT; Ophthalmology; Ophtho; Ophthy; Ordinal; Point in time; Prev; QL; Qual; Qualitative; Random; RNFL; Screen

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Left optic disc and retinal nerve fiber layer Function compared to previous assessment by ERGL optic disc+RNFL Comp func ERGFunction compared to previous assessmentEYE.ERGFindPtOptic disc+retinal nerve fiber layer.left

Frequently asked questions

Code details

Code96217-5

SystemLOINC

Display nameLeft optic disc and retinal nerve fiber layer Function compared to previous assessment by ERG

DescriptionFunction compared to previous assessment

Short nameL optic disc+RNFL Comp func ERG

ComponentFunction compared to previous assessment

PropertyFind

TimingPt

System (specimen)Optic disc+retinal nerve fiber layer.left

ScaleOrd

MethodElectroretinogram

ClassEYE.ERG

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.69

Last changed2.69

Part names

Function compared to previous assessmentFindPtOptic disc+retinal nerve fiber layer.leftOrdElectroretinogramFindingPoint in time (spot)Left optic disc and retinal nerve fiber layerERG

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.