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 65575-3: Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next [PhenX]

Name: LOINC Code 65575-3: Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next [PhenX]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:45.456Z

65575-3 is a LOINC code used to identify Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next [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 Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next. 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 Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next. 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

Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next [PhenX]
Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next
Exchange; Finding; Findings; Ordinal; Point in time; Prefer regular sleep schedule; Ql; Qual; Qualitative; Random; Replace; 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

Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the next [PhenX]Prefer regular sleep schedule PhenXDo you prefer to keep a regular sleep schedule - one that does not change much from one night to the nextPHENXFindPt^Patient

Frequently asked questions

Code details

Code65575-3

SystemLOINC

Display nameDo you prefer to keep a regular sleep schedule - one that does not change much from one night to the next [PhenX]

DescriptionDo you prefer to keep a regular sleep schedule - one that does not change much from one night to the next

Short namePrefer regular sleep schedule PhenX

ComponentDo you prefer to keep a regular sleep schedule - one that does not change much from one night to the next

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

Do you prefer to keep a regular sleep schedule - one that does not change much from one night to the nextFindPt^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.