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 91630-4: Have you felt down-hearted and blue during the past month [NHANES]

Name: LOINC Code 91630-4: Have you felt down-hearted and blue during the past month [NHANES]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:21.441Z

91630-4 is a LOINC code used to identify Have you felt down-hearted and blue during the past month [NHANES] 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 Have you felt down-hearted and blue during the past Mo. 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 Have you felt down-hearted and blue during the past Mo. 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: NHANES

What it does not mean

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

Key facts

Have you felt down-hearted and blue during the past month [NHANES]
Have you felt down-hearted and blue during the past Mo
1 month; 1 month (30 days); 30 days; Finding; Findings; Last; month; Ordinal; Ql; Qual; Qualitative; Screen; Survey; SURVEY.MTLHLTH

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

Have you felt down-hearted and blue during the past month [NHANES]Have you felt down-hearted and blue during the past MoSURVEY.MTLHLTHFind1Mo^PatientOrd

Frequently asked questions

Code details

Code91630-4

SystemLOINC

Display nameHave you felt down-hearted and blue during the past month [NHANES]

DescriptionHave you felt down-hearted and blue during the past Mo

ComponentHave you felt down-hearted and blue during the past Mo

PropertyFind

Timing1Mo

System (specimen)^Patient

ScaleOrd

MethodNHANES

ClassSURVEY.MTLHLTH

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.66

Last changed2.66

Part names

Have you felt down-hearted and blue during the past MoFind1Mo^PatientOrdNHANESHave you felt down-hearted and blue during the past monthFinding1 month

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.