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.

LOINC

LOINC Code 64754-5: Does your child close one eye when he or she is in bright sun light [PhenX]

Name: LOINC Code 64754-5: Does your child close one eye when he or she is in bright sun light [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:44.549Z

64754-5 is a LOINC code used to identify Does your child close one eye when he or she is in bright sun light [PhenX] 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 Does your child close one eye when he or she is in bright sun light. It is commonly used with the system or sample type ^Patient.

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 Does your child close one eye when he or she is in bright sun light. It is commonly used with the system or sample type ^Patient.

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: TRIAL
Method: PhenX

What it does not mean

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

Key facts

Does your child close one eye when he or she is in bright sun light [PhenX]
Does your child close one eye when he or she is in bright sun light
Close one eye bright light; Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; 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

Does your child close one eye when he or she is in bright sun light [PhenX]Close one eye bright light PhenXDoes your child close one eye when he or she is in bright sun lightPHENXFindPt^Patient

Frequently asked questions

Code details

Code64754-5

SystemLOINC

Display nameDoes your child close one eye when he or she is in bright sun light [PhenX]

DescriptionDoes your child close one eye when he or she is in bright sun light

Short nameClose one eye bright light PhenX

ComponentDoes your child close one eye when he or she is in bright sun light

PropertyFind

TimingPt

System (specimen)^Patient

ScaleOrd

MethodPhenX

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

Does your child close one eye when he or she is in bright sun lightFindPt^PatientOrdPhenXFindingPoint in time (spot)

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.