LOINCActiveObservation

LOINC Code 18094-3: Aortic valve Orifice area by US.continuity.Vmax+Diameter

18094-3 is a LOINC code used to identify Aortic valve Orifice area by US.continuity.Vmax+Diameter 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 Orifice area. It is commonly used with the system or sample type Aortic 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 Orifice area. It is commonly used with the system or sample type Aortic 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.continuity.Vmax+Diameter

What it does not mean

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

Key facts

  • Aortic valve Orifice area by US.continuity.Vmax+Diameter
  • Orifice area
  • AO; AoV; AV; AVA; CARD.US; Cardio; Cardiology; Cont; Echography; Heart Disease; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; US.cont.VMAX+diam

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

Aortic valve Orifice area by US.continuity.Vmax+DiameterAV Orifice area US.cont.VMAX+diamOrifice areaCARD.USAreaPtAortic valve

Frequently asked questions

Code details

Code18094-3
SystemLOINC
Display nameAortic valve Orifice area by US.continuity.Vmax+Diameter
DescriptionOrifice area
Short nameAV Orifice area US.cont.VMAX+diam
ComponentOrifice area
PropertyArea
TimingPt
System (specimen)Aortic valve
ScaleQn
MethodUS.continuity.Vmax+Diameter
ClassCARD.US
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.67

Part names

Orifice areaAreaPtAortic valveQnUS.continuity.Vmax+DiameterPoint in time (spot)Ultrasound.continuity.Vmax+Diameter

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 18094-3 | HealthAssure