LOINCActive

LOINC Code 59077-8: Heart Foramen ovale diameter/Aortic root diameter by US

59077-8 is a LOINC code used to identify Heart Foramen ovale diameter/Aortic root diameter 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 Diameter.foramen ovale/Diameter.aorta root. It is commonly used with the system or sample type Heart.

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.foramen ovale/Diameter.aorta root. It is commonly used with the system or sample type Heart.

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 Foramen ovale diameter/Aortic root diameter by US
  • Diameter.foramen ovale/Diameter.aorta root
  • The Foramen Ovale Diameter divided by Aortic Root Diameter
  • CARD.US; Cardiac; Cardio; Cardiology; DIA; Diam; Diam AO root; Diam FO; Echography; Heart Disease; Hrt; Length Ratio; OA root; Point in time; QNT; Quan; Quant; Quantitative; Random; Sonogram; Sonograph; Sonography; ULS; Ultrasound

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 Foramen ovale diameter/Aortic root diameter by USHrt Diam FO/OA root USDiameter.foramen ovale/Diameter.aorta rootCARD.USLenRtoPtHeart

Frequently asked questions

Code details

Code59077-8
SystemLOINC
Display nameHeart Foramen ovale diameter/Aortic root diameter by US
DescriptionDiameter.foramen ovale/Diameter.aorta root
Short nameHrt Diam FO/OA root US
ComponentDiameter.foramen ovale/Diameter.aorta root
PropertyLenRto
TimingPt
System (specimen)Heart
ScaleQn
MethodUS
ClassCARD.US
Example unitsratio
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Diameter.foramen ovale/Diameter.aorta rootLenRtoPtHeartQnUSLength RatioPoint in time (spot)Ultrasound

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 59077-8 | HealthAssure