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 65669-4: What month and year did child first begin wearing glasses or contact lenses [PhenX]

Name: LOINC Code 65669-4: What month and year did child first begin wearing glasses or contact lenses [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:45.457Z

65669-4 is a LOINC code used to identify What month and year did child first begin wearing glasses or contact lenses [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 What Mo and Y did child first begin wearing glasses or contact lenses. 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 What Mo and Y did child first begin wearing glasses or contact lenses. 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

What month and year did child first begin wearing glasses or contact lenses [PhenX]
What Mo and Y did child first begin wearing glasses or contact lenses
Begin glasses contact lenses date; month; Point in time; QNT; Quan; Quant; Quantitative; Random

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

What month and year did child first begin wearing glasses or contact lenses [PhenX]Begin glasses contact lenses date PhenXWhat Mo and Y did child first begin wearing glasses or contact lensesPHENXDatePt^Patient

Frequently asked questions

Code details

Code65669-4

SystemLOINC

Display nameWhat month and year did child first begin wearing glasses or contact lenses [PhenX]

DescriptionWhat Mo and Y did child first begin wearing glasses or contact lenses

Short nameBegin glasses contact lenses date PhenX

ComponentWhat Mo and Y did child first begin wearing glasses or contact lenses

PropertyDate

TimingPt

System (specimen)^Patient

ScaleQn

MethodPhenX

ClassPHENX

Example unitsMMYYYY

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

What Mo and Y did child first begin wearing glasses or contact lensesDatePt^PatientQnPhenXWhat month and year did child first begin wearing glasses or contact lensesPoint 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.