LOINCActiveObservation

LOINC Code 82339-3: Aorta.sinotubular junction Diameter by US 2D

82339-3 is a LOINC code used to identify Aorta.sinotubular junction Diameter by US 2D 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 Diameter. It is commonly used with the system or sample type Aorta.sinotubular junction.

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 Diameter. It is commonly used with the system or sample type Aorta.sinotubular junction.

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.2D

What it does not mean

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

Key facts

  • Aorta.sinotubular junction Diameter by US 2D
  • Diameter
  • 2D US; AO; AO.sinotub junc; Aortic; CARD.US; Cardio; Cardiology; DIA; Diam; Echography; Heart Disease; Length; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Ultrasound - 2-dimensional

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

Aorta.sinotubular junction Diameter by US 2DAO.sinotub junc Diam 2D USDiameterCARD.USLenPtAorta.sinotubular junction

Frequently asked questions

Code details

Code82339-3
SystemLOINC
Display nameAorta.sinotubular junction Diameter by US 2D
DescriptionDiameter
Short nameAO.sinotub junc Diam 2D US
ComponentDiameter
PropertyLen
TimingPt
System (specimen)Aorta.sinotubular junction
ScaleQn
MethodUS.2D
ClassCARD.US
Example unitsmm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.58
Last changed2.58

Part names

DiameterLenPtAorta.sinotubular junctionQnUS.2DLengthPoint in time (spot)Ultrasound 2D

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 82339-3 | HealthAssure