LOINCActive

LOINC Code 18593-4: Ambulance transport, Discharged from origin institution

18593-4 is a LOINC code used to identify Ambulance transport, Discharged from origin institution 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 Discharged from origin institution. It is commonly used with the system or sample type Ambulance transport.

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 Discharged from origin institution. It is commonly used with the system or sample type Ambulance transport.

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

What it does not mean

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

Key facts

  • Ambulance transport, Discharged from origin institution
  • Discharged from origin institution
  • ATTACH; ATTACH.AMB; Facility; Finding; Findings; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen

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

Ambulance transport, Discharged from origin institutionDischarged from origin institutionATTACH.AMBFindPtAmbulance transportOrd

Frequently asked questions

Code details

Code18593-4
SystemLOINC
Display nameAmbulance transport, Discharged from origin institution
DescriptionDischarged from origin institution
ComponentDischarged from origin institution
PropertyFind
TimingPt
System (specimen)Ambulance transport
ScaleOrd
ClassATTACH.AMB
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.27

Part names

Discharged from origin institutionFindPtAmbulance transportOrdFindingPoint 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.