LOINCActiveObservation

LOINC Code 10134-5: T' wave amplitude in lead II

10134-5 is a LOINC code used to identify T' wave amplitude in lead II 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 T' wave amplitude.lead II. 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 T' wave amplitude.lead II. 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: Observation
  • Method: EKG

What it does not mean

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

Key facts

  • T' wave amplitude in lead II
  • T' wave amplitude.lead II
  • 2; Cardiac; Cardio; Cardiology; ECG; EKG.MEASUREMENTS; Electrical potential; Electrocardiogram; Electrocardiograph; Heart Disease; Hrt; Painter's colic; PB; Plumbism; Point in time; QNT; Quan; Quant; Quantitative; Random; T prime; T' wave Amp L-II; T wave Amp L-II; Voltage

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

T' wave amplitude in lead IIT' wave Amp L-IIT' wave amplitude.lead IIEKG.MEASElpotPtHeart

Frequently asked questions

Code details

Code10134-5
SystemLOINC
Display nameT' wave amplitude in lead II
DescriptionT' wave amplitude.lead II
Short nameT' wave Amp L-II
ComponentT' wave amplitude.lead II
PropertyElpot
TimingPt
System (specimen)Heart
ScaleQn
MethodEKG
ClassEKG.MEAS
Example unitsmV
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.48

Part names

T' wave amplitude.lead IIElpotPtHeartQnEKGElectrical Potential (Voltage)Point in time (spot)Electrocardiogram (EKG)

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 10134-5 | HealthAssure