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.

LOINC

LOINC Code 58270-0: Emergency room visit or hospitalized or saw doctor for atrial fibrillation

Name: LOINC Code 58270-0: Emergency room visit or hospitalized or saw doctor for atrial fibrillation
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:39.273Z

58270-0 is a LOINC code used to identify Emergency room visit or hospitalized or saw doctor for atrial fibrillation 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 Emergency room visit or hospitalized or saw doctor for atrial fibrillation. 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 Emergency room visit or hospitalized or saw doctor for atrial fibrillation. 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: TRIAL
Panel type: Panel

What it does not mean

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

Key facts

Emergency room visit or hospitalized or saw doctor for atrial fibrillation
ER visit/hospital/saw doctor for AF; Finding; Findings; Ordinal; PhenX; 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

Emergency room visit or hospitalized or saw doctor for atrial fibrillationER visit/hospital/saw doctor for AFPHENXFindPt^PatientOrd

Frequently asked questions

Code details

Code58270-0

SystemLOINC

Display nameEmergency room visit or hospitalized or saw doctor for atrial fibrillation

Short nameER visit/hospital/saw doctor for AF

ComponentEmergency room visit or hospitalized or saw doctor for atrial fibrillation

PropertyFind

TimingPt

System (specimen)^Patient

ScaleOrd

ClassPHENX

StatusTRIAL

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.30

Last changed2.65

Part names

Emergency room visit or hospitalized or saw doctor for atrial fibrillationFindPt^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.