LOINCActiveObservation

LOINC Code 79937-9: Tricuspid valve Maximum pressure gradient dur systole by US.doppler.CW+Calculated by simplified Bernoulli

79937-9 is a LOINC code used to identify Tricuspid valve Maximum pressure gradient dur systole by US.doppler.CW+Calculated by simplified Bernoulli 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 Pressure gradient.systole.max. It is commonly used with the system or sample type Tricuspid valve.

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 Pressure gradient.systole.max. It is commonly used with the system or sample type Tricuspid valve.

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.doppler.CW+Calculated by simplified Bernoulli

What it does not mean

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

Key facts

  • Tricuspid valve Maximum pressure gradient dur systole by US.doppler.CW+Calculated by simplified Bernoulli
  • Pressure gradient.systole.max
  • Calc; Calculation; CARD.US; CARD.US.DICOM; Cardio; Cardiology; Continuous wave; DOP; DOP.CW; DUPLEX; Echography; Grad; Gradient sys; Heart Disease; Largest; Max grad sys; Max press grad sys; Maximal; Maximum; Peak; Point in time; Press grad; QNT; Quan; Quant; Quantitative; Random; Simp Bern; Sonogram; Sonograph; Sonography; Sys; Sys.max; Syst; TV; ULS; Ultrasound

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

Tricuspid valve Maximum pressure gradient dur systole by US.doppler.CW+Calculated by simplified BernoulliTV Max press grad sys Simp BernPressure gradient.systole.maxCARD.US.DICOMPressDiffPtTricuspid valve

Frequently asked questions

Code details

Code79937-9
SystemLOINC
Display nameTricuspid valve Maximum pressure gradient dur systole by US.doppler.CW+Calculated by simplified Bernoulli
DescriptionPressure gradient.systole.max
Short nameTV Max press grad sys Simp Bern
ComponentPressure gradient.systole.max
PropertyPressDiff
TimingPt
System (specimen)Tricuspid valve
ScaleQn
MethodUS.doppler.CW+Calculated by simplified Bernoulli
ClassCARD.US.DICOM
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.67

Part names

Pressure gradient.systole.maxPressDiffPtTricuspid valveQnUS.doppler.CW+Calculated by simplified BernoulliMaximum pressure gradient dur systolePressure DifferencePoint 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.