LOINCActiveBoth

LOINC Code 18754-2: Ambulatory cardiac rhythm monitor (Holter) study

18754-2 is a LOINC code used to identify Ambulatory cardiac rhythm monitor (Holter) study 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 Ambulatory cardiac rhythm monitor study. It is commonly used with the system or sample type Heart.

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 Ambulatory cardiac rhythm monitor study. It is commonly used with the system or sample type Heart.

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: Both
  • Method: Holter monitor

What it does not mean

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

Key facts

  • Ambulatory cardiac rhythm monitor (Holter) study
  • Ambulatory cardiac rhythm monitor study
  • CARD.PROC; Cardiac; Cardio; Cardiology; Document; Finding; Findings; Heart Disease; Hrt; Point in time; Random; Study report

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

Ambulatory cardiac rhythm monitor (Holter) studyHolter monitor studyAmbulatory cardiac rhythm monitor studyCARD.PROCFindPtHeart

Frequently asked questions

Code details

Code18754-2
SystemLOINC
Display nameAmbulatory cardiac rhythm monitor (Holter) study
DescriptionAmbulatory cardiac rhythm monitor study
Short nameHolter monitor study
ComponentAmbulatory cardiac rhythm monitor study
PropertyFind
TimingPt
System (specimen)Heart
ScaleDoc
MethodHolter monitor
ClassCARD.PROC
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.72

Part names

Ambulatory cardiac rhythm monitor studyFindPtHeartDocHolter monitorFindingPoint 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.