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LOINC Code 94123-7: Pulmonary artery End diastolic blood pressure by Cardiac catheterization

94123-7 is a LOINC code used to identify Pulmonary artery End diastolic blood pressure by Cardiac catheterization 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 Intravascular end diastolic. 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 Intravascular end diastolic. 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: Observation
  • Method: Cardiac catheterization

What it does not mean

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

Key facts

Pulmonary artery End diastolic blood pressure by Cardiac catheterization
Intravascular end diastolic
Diastolic pulmonary artery pressure (dPAP) is used with pulmonary artery wedge pressure (PAWP) to help distinguish post-capillary pulmonary hypertension from combined post- and pre-capillary pulmonary hypertension associated with left heart failure. The diastolic pressure gradient (DPG) is calculated as dPAP minus PAWP, and is an alternate to the transpulmonary pressure gradient (TPG), which is calculated as the mean pulmonary artery pressure (mPAP) minus PAWP. An elevated DPG or TPG indicates that the increase in pulmonary pressure is not solely due to increased PAWP (post-capillary), but rather has a pre-capillary component as well, as reflected in an dPAP/mPAP increase out of proportion to PAWP. [PMID27587711]
Art; Blood pressure; Blood pressure diastolic; BLOOD PRESSURE MEASUREMENTS.CENTRAL.MOLEC; BP; BP diastolic; BP end dias; DBP; Dias; Dias BP; Diast; Diastoli; ED; Intravenous; IV; PA; PAP; Point in time; Pressure; QNT; Quan; Quant; Quantitative; Random

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 End diastolic blood pressure by Cardiac catheterizationdPAP by Cardiac cathIntravascular end diastolicBP.CENT.MOLECPresPtPulmonary artery

Frequently asked questions

Code details

Code94123-7
SystemLOINC
Display namePulmonary artery End diastolic blood pressure by Cardiac catheterization
DescriptionIntravascular end diastolic
Short namedPAP by Cardiac cath
ComponentIntravascular end diastolic
PropertyPres
TimingPt
System (specimen)Pulmonary artery
ScaleQn
MethodCardiac catheterization
ClassBP.CENT.MOLEC
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.67
Last changed2.67

Part names

Intravascular end diastolicPresPtPulmonary arteryQnCardiac catheterizationPressurePoint in time (spot)

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.