LOINCActiveObservation

LOINC Code 18083-6: Left ventricular Internal diameter minor axis diastole by US 2D

18083-6 is a LOINC code used to identify Left ventricular Internal diameter minor axis diastole 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 Internal diameter.minor axis.diastole. It is commonly used with the system or sample type Heart.ventricle.left.

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 Internal diameter.minor axis.diastole. It is commonly used with the system or sample type Heart.ventricle.left.

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

  • Left ventricular Internal diameter minor axis diastole by US 2D
  • Internal diameter.minor axis.diastole
  • 2D US; CARD.US; Cardiac; Cardio; Cardiology; DIA; Diam; diam D; Diam dias, short; Dias; Diast; Diastoli; Echography; Heart Disease; Hrt; Hrt ventr; L; Length; LT; LV; LVIDd; Point in time; QNT; Quan; Quant; Quantitative; Random; SAX; short axis; Sonogram; Sonograph; Sonography; ULS; Ultrasound; Ultrasound - 2-dimensional; 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 Internal diameter minor axis diastole by US 2DLV Diam dias, short 2D USInternal diameter.minor axis.diastoleCARD.USLenPtHeart.ventricle.left

Frequently asked questions

Code details

Code18083-6
SystemLOINC
Display nameLeft ventricular Internal diameter minor axis diastole by US 2D
DescriptionInternal diameter.minor axis.diastole
Short nameLV Diam dias, short 2D US
ComponentInternal diameter.minor axis.diastole
PropertyLen
TimingPt
System (specimen)Heart.ventricle.left
ScaleQn
MethodUS.2D
ClassCARD.US
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.48

Part names

Internal diameter.minor axis.diastoleLenPtHeart.ventricle.leftQnUS.2DInternal diameter minor axis diastoleLengthPoint in time (spot)Heart ventricle - leftUltrasound 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 18083-6 | HealthAssure