LOINCActiveObservation

LOINC Code 10101-4: ST slope in lead V2

10101-4 is a LOINC code used to identify ST slope in lead V2 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 ST slope.lead V2. 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 ST slope.lead V2. 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

  • ST slope in lead V2
  • ST slope.lead V2
  • Amperage; Cardiac; Cardio; Cardiology; ECG; EKG.MEASUREMENTS; Electrocardiogram; Electrocardiograph; Heart Disease; Hrt; Painter's colic; PB; Plumbism; Point in time; QNT; Quan; Quant; Quantitative; Random; ST Slope L-V2; Voltage rate

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

ST slope in lead V2ST Slope L-V2ST slope.lead V2EKG.MEASElpotRatPtHeart

Frequently asked questions

Code details

Code10101-4
SystemLOINC
Display nameST slope in lead V2
DescriptionST slope.lead V2
Short nameST Slope L-V2
ComponentST slope.lead V2
PropertyElpotRat
TimingPt
System (specimen)Heart
ScaleQn
MethodEKG
ClassEKG.MEAS
Example unitsmV/s
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

ST slope.lead V2ElpotRatPtHeartQnEKGVoltage Rate (Amperage)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 10101-4 | HealthAssure