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LOINC Code 105005-3: Patent ductus arteriosis Peak pressure gradient by US

105005-3 is a LOINC code used to identify Patent ductus arteriosis Peak pressure gradient 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 Pressure gradient.max. It is commonly used with the system or sample type Patent ductus arteriosis.

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 Pressure gradient.max. It is commonly used with the system or sample type Patent ductus arteriosis.

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

What it does not mean

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

Key facts

  • Patent ductus arteriosis Peak pressure gradient by US
  • Pressure gradient.max
  • CARD.US; Cardiology; Echography; Grad; Largest; Maximal; Maximum; PDA; Peak; Peak press grad; Point in time; Press grad; 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

Patent ductus arteriosis Peak pressure gradient by USPDA Peak press grad USPressure gradient.maxCARD.USPressDiffPtPatent ductus arteriosis

Frequently asked questions

Code details

Code105005-3
SystemLOINC
Display namePatent ductus arteriosis Peak pressure gradient by US
DescriptionPressure gradient.max
Short namePDA Peak press grad US
ComponentPressure gradient.max
PropertyPressDiff
TimingPt
System (specimen)Patent ductus arteriosis
ScaleQn
MethodUS
ClassCARD.US
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.78
Last changed2.78

Part names

Pressure gradient.maxPressDiffPtPatent ductus arteriosisQnUSGradient maximumPressure DifferencePoint 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.