LOINCActiveObservation

LOINC Code 76184-1: Carbon dioxide [Partial pressure] in Pulmonary artery

76184-1 is a LOINC code used to identify Carbon dioxide [Partial pressure] in Pulmonary artery 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 Carbon dioxide. 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 Carbon dioxide. 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

What it does not mean

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

Key facts

  • Carbon dioxide [Partial pressure] in Pulmonary artery
  • Carbon dioxide
  • Partial pressure of CO2 in the pulmonary artery. [IEEE]
  • Art; Carbonic anhydride; Cardio; Cardiology; CO2; Heart Disease; Lung; PA; Partial pressure; PCO2; Point in time; Pulmonary; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory

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

Carbon dioxide [Partial pressure] in Pulmonary arterypCO2 PACarbon dioxidePULMPPresPtPulmonary artery

Frequently asked questions

Code details

Code76184-1
SystemLOINC
Display nameCarbon dioxide [Partial pressure] in Pulmonary artery
DescriptionCarbon dioxide
Short namepCO2 PA
ComponentCarbon dioxide
PropertyPPres
TimingPt
System (specimen)Pulmonary artery
ScaleQn
ClassPULM
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.73

Part names

Carbon dioxidePPresPtPulmonary arteryQnPartial pressurePoint 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.

LOINC Code 76184-1 | HealthAssure