LOINCActiveObservation

LOINC Code 88091-4: Bystander observed collapse

88091-4 is a LOINC code used to identify Bystander observed collapse 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 Bystander observed collapse. 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 Bystander observed collapse. 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

What it does not mean

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

Key facts

  • Bystander observed collapse
  • Indicates whether the patient's collapse was observed by a bystander (witness).
  • Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; TRAUMA

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

Bystander observed collapseTRAUMAFindPt^PatientOrdFinding

Frequently asked questions

Code details

Code88091-4
SystemLOINC
Display nameBystander observed collapse
Short nameBystander observed collapse
ComponentBystander observed collapse
PropertyFind
TimingPt
System (specimen)^Patient
ScaleOrd
ClassTRAUMA
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.63
Last changed2.70

Part names

Bystander observed collapseFindPt^PatientOrdFindingPoint 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.

LOINC Code 88091-4 | HealthAssure