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 65877-3: Did your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boat [PhenX]

Name: LOINC Code 65877-3: Did your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boat [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:45.458Z

65877-3 is a LOINC code used to identify Did your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boat [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 Did your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boat. 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 Did your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boat. 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

Did your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boat [PhenX]
Did your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boat
3; Dextro; Finding; Findings; Job; Occupation; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Tot; Totl; Work day over water >3H

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

Did your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boat [PhenX]Work day over water >3H PhenXDid your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boatPHENXFindPt^Patient

Frequently asked questions

Code details

Code65877-3

SystemLOINC

Display nameDid your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boat [PhenX]

DescriptionDid your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boat

Short nameWork day over water >3H PhenX

ComponentDid your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boat

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

Did your main daytime activities during a typical work W have you on water for a total of three or more H a D, for example working on a boatFindPt^PatientOrdPhenXDid your main daytime activities during a typical work week have you on water for a total of three or more hours a day, for example working on a boatFindingPoint 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.