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LOINC Code 91651-0: General Well-Being Schedule - 18 item - total score [NHANES]

91651-0 is a LOINC code used to identify General Well-Being Schedule - 18 item - total score [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 General Well-Being Schedule - 18 item - 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 General Well-Being Schedule - 18 item - 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: NHANES

What it does not mean

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

Key facts

General Well-Being Schedule - 18 item - total score [NHANES]
General Well-Being Schedule - 18 item - total score
The total score for the General Well Being Schedule (GWB) 18-item, self-administered questionnaire. The first 14 questions use 6-point response scales representing intensity or frequency, where each response is assigned a numeric score from 0 to 5 (in the original GWB Schedule) or 1 to 6 (in some alternate versions). The remaining four questions use 0-10 rating scales defined by adjectives at each end. The polarity of items 1, 3, 6, 7, 9, 11, 13, 15, and 16 is reversed for scoring, and if using the original GWB Schedule, scores within each subscale are added together for a total score. If the first 14 questions are scored using the alternate 1 to 6 scoring then 14 is substracted from the total. Regardless of the scoring system used, the total score ranges from 0-110. Lower scores reflect distress and higher scores reflect positive well-being.[PMID610049]
General Well-Being Scale; GWB Schedule 18 item; GWB Schedule 18 item score; Point in time; QNT; Quan; Quant; Quantitative; Random; Scale; Scre; Survey; SURVEY.GNHLTH; 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

General Well-Being Schedule - 18 item - total score [NHANES]General Well-Being Schedule - 18 item - total scoreSURVEY.GNHLTHScorePt^PatientQn

Frequently asked questions

Code details

Code91651-0
SystemLOINC
Display nameGeneral Well-Being Schedule - 18 item - total score [NHANES]
DescriptionGeneral Well-Being Schedule - 18 item - total score
ComponentGeneral Well-Being Schedule - 18 item - total score
PropertyScore
TimingPt
System (specimen)^Patient
ScaleQn
MethodNHANES
ClassSURVEY.GNHLTH
Example unitsscore
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.66
Last changed2.66

Part names

General Well-Being Schedule - 18 item - total scoreScorePt^PatientQnNHANESPoint 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.