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 64779-2: For the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy [PhenX]

Name: LOINC Code 64779-2: For the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:44.549Z

64779-2 is a LOINC code used to identify For the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy [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 For the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy. 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 For the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy. 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

For the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy [PhenX]
For the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy
3 months; bod; Bodies; Dry eyes past 3Mo; FB; Finding; Findings; Last; Nominal

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

For the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy [PhenX]Dry eyes past 3Mo PhenXFor the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergyPHENXFind3Mo^Patient

Frequently asked questions

Code details

Code64779-2

SystemLOINC

Display nameFor the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy [PhenX]

DescriptionFor the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy

Short nameDry eyes past 3Mo PhenX

ComponentFor the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergy

PropertyFind

Timing3Mo

System (specimen)^Patient

ScaleNom

MethodPhenX

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.36

Last changed2.65

Part names

For the past 3Mo or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergyFind3Mo^PatientNomPhenXFor the past 3 months or longer, have you had dry eyes, foreign body sensation with itching and burning, sandy feeling, not related to allergyFinding3 months

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.