LOINCActiveObservation

LOINC Code 18072-9: Left ventricular Major axis diastole [Length] by US.2D.A2C

18072-9 is a LOINC code used to identify Left ventricular Major axis diastole [Length] by US.2D.A2C 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 Major 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 Major 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.A2C

What it does not mean

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

Key facts

  • Left ventricular Major axis diastole [Length] by US.2D.A2C
  • Major axis.diastole
  • 2D US; CARD.US; Cardiac; Cardio; Cardiology; Dias; Diast; Diastoli; Echography; Heart Disease; Hrt; Hrt ventr; L; LAX; Length; Long axis; LT; LV; Major axis dias; Point in time; QNT; Quan; Quant; Quantitative; Random; 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 Major axis diastole [Length] by US.2D.A2CLV Major axis dias A2CMajor axis.diastoleCARD.USLenPtHeart.ventricle.left

Frequently asked questions

Code details

Code18072-9
SystemLOINC
Display nameLeft ventricular Major axis diastole [Length] by US.2D.A2C
DescriptionMajor axis.diastole
Short nameLV Major axis dias A2C
ComponentMajor axis.diastole
PropertyLen
TimingPt
System (specimen)Heart.ventricle.left
ScaleQn
MethodUS.2D.A2C
ClassCARD.US
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.68

Part names

Major axis.diastoleLenPtHeart.ventricle.leftQnUS.2D.A2CMajor axis diastoleLengthPoint in time (spot)Heart ventricle - left

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 18072-9 | HealthAssure