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 91687-4: Adult self-report long form total score [MFQ]

Name: LOINC Code 91687-4: Adult self-report long form total score [MFQ]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:21.442Z

91687-4 is a LOINC code used to identify Adult self-report long form total score [MFQ] 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 Adult self-report long form total score. 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 Adult self-report long form total score. 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: MFQ

What it does not mean

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

Key facts

Adult self-report long form total score [MFQ]

Adult self-report long form total score

The total score for the MFQ Adult self-report long form is the sum of the 33-item scores. Higher total scores indicate more severe depression.[http//devepi.duhs.duke.edu/mfq.html]

Adult self-report long score; Point in time; QNT; Quan; Quant; Quantitative; Random; Scale; Scre; Survey; SURVEY.MTLHLTH; Tot; Totl

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

Adult self-report long form total score [MFQ]Adult self-report long form total scoreSURVEY.MTLHLTHScorePt^PatientQn

Frequently asked questions

Code details

Code91687-4

SystemLOINC

Display nameAdult self-report long form total score [MFQ]

DescriptionAdult self-report long form total score

ComponentAdult self-report long form total score

PropertyScore

TimingPt

System (specimen)^Patient

ScaleQn

MethodMFQ

ClassSURVEY.MTLHLTH

Example unitsscore

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.66

Last changed2.66

Part names

Adult self-report long form total scoreScorePt^PatientQnMFQPoint in time (spot)Mood and Feelings Questionnaire (MFQ)

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.