LOINCActiveBoth

LOINC Code 104164-9: Pulmonary artery Pressure by US.doppler

104164-9 is a LOINC code used to identify Pulmonary artery Pressure by US.doppler 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. It is commonly used with the system or sample type Pulmonary artery.

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. It is commonly used with the system or sample type Pulmonary artery.

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: Both
  • Method: US.doppler

What it does not mean

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

Key facts

  • Pulmonary artery Pressure by US.doppler
  • Pressure
  • Art; CARD.US; Cardiology; DOP; DUPLEX; Echography; PA; PAP; Point in time; Pressure; 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

Pulmonary artery Pressure by US.dopplerPA Press DOPPressureCARD.USPresPtPulmonary artery

Frequently asked questions

Code details

Code104164-9
SystemLOINC
Display namePulmonary artery Pressure by US.doppler
DescriptionPressure
Short namePA Press DOP
ComponentPressure
PropertyPres
TimingPt
System (specimen)Pulmonary artery
ScaleQn
MethodUS.doppler
ClassCARD.US
Example unitsmm Hg
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.77
Last changed2.77

Part names

PressurePresPtPulmonary arteryQnUS.dopplerPoint in time (spot)Ultrasound.doppler

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.