LOINCActiveObservation

LOINC Code 91102-4: People with confirmed negative lab results [#] Population

91102-4 is a LOINC code used to identify People with confirmed negative lab results [#] Population 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 People with confirmed negative lab results. It is commonly used with the system or sample type ^Population.

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 People with confirmed negative lab results. It is commonly used with the system or sample type ^Population.

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

What it does not mean

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

Key facts

  • People with confirmed negative lab results [#] Population
  • People with confirmed negative lab results
  • The total number of people in a defined population that have a confirmed negative diagnosis, typically based on laboratory tests.
  • Cnt; Count; NEG; Number; Point in time; Public Health; PUBLICHEALTH; QNT; Quan; Quant; Quantitative; Random

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

People with confirmed negative lab results [#] PopulationConfirmed negative lab results PopPeople with confirmed negative lab resultsPUBLICHEALTHNumPt^Population

Frequently asked questions

Code details

Code91102-4
SystemLOINC
Display namePeople with confirmed negative lab results [#] Population
DescriptionPeople with confirmed negative lab results
Short nameConfirmed negative lab results Pop
ComponentPeople with confirmed negative lab results
PropertyNum
TimingPt
System (specimen)^Population
ScaleQn
ClassPUBLICHEALTH
Example units#
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.65
Last changed2.68

Part names

People with confirmed negative lab resultsNumPt^PopulationQnNumber (count)Point 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.