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.

LOINCActiveObservation

LOINC Code 79988-2: Left ventricular posterior wall Time to peak displacement during systole by US.M-mode+ECG

Name: LOINC Code 79988-2: Left ventricular posterior wall Time to peak displacement during systole by US.M-mode+ECG
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.838Z

79988-2 is a LOINC code used to identify Left ventricular posterior wall Time to peak displacement during systole by US.M-mode+ECG 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 Time to peak displacement.systole. It is commonly used with the system or sample type Heart.ventricle.left.posterior wall.

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 Time to peak displacement.systole. It is commonly used with the system or sample type Heart.ventricle.left.posterior wall.

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: US.M-mode+ECG

What it does not mean

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

Key facts

Left ventricular posterior wall Time to peak displacement during systole by US.M-mode+ECG
Time to peak displacement.systole
CARD.US; CARD.US.DICOM; Cardiac; Cardio; Cardiology; Echography; Eklund; Heart Disease; Hrt; Hrt ventr; L; LT; LV; LV PW; LVPW; MM; mmode; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Sys; Syst; ULS; Ultrasound; Ventricular

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

Left ventricular posterior wall Time to peak displacement during systole by US.M-mode+ECGLVPW Time to peak displace US.M-mode+ECGTime to peak displacement.systoleCARD.US.DICOMTimePtHeart.ventricle.left.posterior wall

Frequently asked questions

Code details

Code79988-2

SystemLOINC

Display nameLeft ventricular posterior wall Time to peak displacement during systole by US.M-mode+ECG

DescriptionTime to peak displacement.systole

Short nameLVPW Time to peak displace US.M-mode+ECG

ComponentTime to peak displacement.systole

PropertyTime

TimingPt

System (specimen)Heart.ventricle.left.posterior wall

ScaleQn

MethodUS.M-mode+ECG

ClassCARD.US.DICOM

Example unitsms

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Part names

Time to peak displacement.systoleTimePtHeart.ventricle.left.posterior wallQnUS.M-mode+ECGTime to peak displacement during systoleTime (e.g. seconds)Point in time (spot)Heart ventricle Left posterior wall

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.