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.

LOINCActiveObservation

LOINC Code 54641-6: Trouble falling or staying asleep, or sleeping too much in last 2 weeks.frequency [Reported PHQ-9 CMS]

Name: LOINC Code 54641-6: Trouble falling or staying asleep, or sleeping too much in last 2 weeks.frequency [Reported PHQ-9 CMS]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:37.119Z

54641-6 is a LOINC code used to identify Trouble falling or staying asleep, or sleeping too much in last 2 weeks.frequency [Reported PHQ-9 CMS] 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 Trouble falling or staying asleep, or sleeping too much in last 2W.frequency. 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 Trouble falling or staying asleep, or sleeping too much in last 2W.frequency. 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: ACTIVE
Order vs observation: Observation
Method: Reported.PHQ-9.CMS

What it does not mean

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

Key facts

Trouble falling or staying asleep, or sleeping too much in last 2 weeks.frequency [Reported PHQ-9 CMS]
Trouble falling or staying asleep, or sleeping too much in last 2W.frequency
14 days; 2 weeks; Finding; Findings; Mental health; MentalHealth; Ordinal; Past; Patient Health Questionnaire; PHQ9; Psych; Psychiatry; Ql; Qual; Qualitative; Screen; Survey; Trouble falling or staying asleep, or sleeping too much.frequency

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

Trouble falling or staying asleep, or sleeping too much in last 2 weeks.frequency [Reported PHQ-9 CMS]Trouble falling or staying asleep, or sleeping too much in last 2W.frequencySURVEY.CMSFind2W^PatientOrd

Frequently asked questions

Code details

Code54641-6

SystemLOINC

Display nameTrouble falling or staying asleep, or sleeping too much in last 2 weeks.frequency [Reported PHQ-9 CMS]

DescriptionTrouble falling or staying asleep, or sleeping too much in last 2W.frequency

ComponentTrouble falling or staying asleep, or sleeping too much in last 2W.frequency

PropertyFind

Timing2W

System (specimen)^Patient

ScaleOrd

MethodReported.PHQ-9.CMS

ClassSURVEY.CMS

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.27

Last changed2.63

Part names

Trouble falling or staying asleep, or sleeping too much in last 2W.frequencyFind2W^PatientOrdReported.PHQ-9.CMSTrouble falling or staying asleep, or sleeping too much in last 2 weeks.frequencyFinding2 weeksReported PHQ-9 CMS

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.