LOINCActive

LOINC Code 59123-0: Heart valve Jet cross-section [Area] by US

59123-0 is a LOINC code used to identify Heart valve Jet cross-section [Area] by US 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 Cross section.jet. It is commonly used with the system or sample type Heart.valve.XXX.

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 Cross section.jet. It is commonly used with the system or sample type Heart.valve.XXX.

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
  • Method: US

What it does not mean

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

Key facts

  • Heart valve Jet cross-section [Area] by US
  • Cross section.jet
  • Cross sectional jet area
  • CARD.US; Cardiac; Cardio; Cardiology; Echography; Heart Disease; Hrt; Jet Xsection; Misc; Miscellaneous; Other; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; Spec; To be specified in another part of the message; ULS; Ultrasound; Unspecified; Xsection

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

Heart valve Jet cross-section [Area] by USValve Jet Xsection Area USCross section.jetCARD.USAreaPtHeart.valve.XXX

Frequently asked questions

Code details

Code59123-0
SystemLOINC
Display nameHeart valve Jet cross-section [Area] by US
DescriptionCross section.jet
Short nameValve Jet Xsection Area US
ComponentCross section.jet
PropertyArea
TimingPt
System (specimen)Heart.valve.XXX
ScaleQn
MethodUS
ClassCARD.US
Example unitscm2
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.48

Part names

Cross section.jetAreaPtHeart.valve.XXXQnUSPoint in time (spot)Heart valve XXXUltrasound

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 59123-0 | HealthAssure