LOINCActiveBoth

LOINC Code 28649-2: Oxygen (BldCoV) [Partial pressure]

28649-2 is a LOINC code used to identify Oxygen (BldCoV) [Partial pressure] 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 Oxygen. It is commonly used with the system or sample type BldCoV.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Oxygen. It is commonly used with the system or sample type BldCoV.

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

What it does not mean

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

Key facts

  • Oxygen [Partial pressure] in Venous cord blood
  • Oxygen
  • Bld cord; Chemistry; Cord BldV; Cord venous blood; O2; O2 partial pressure; Partial pressure; PO2; Point in time; QNT; Quan; Quant; Quantitative; Random; tO2

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

Oxygen (BldCoV) [Partial pressure]Oxygen [Partial pressure] in Venous cord bloodpO2 BldCoVOxygenCHEMOxygen, Venous cord bloodPPres

Frequently asked questions

Code details

Code28649-2
SystemLOINC
Display nameOxygen (BldCoV) [Partial pressure]
DescriptionOxygen
Short namepO2 BldCoV
ComponentOxygen
PropertyPPres
TimingPt
System (specimen)BldCoV
ScaleQn
ClassCHEM
Example unitsmm Hg
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.73

Consumer names

Oxygen, Venous cord blood

Part names

OxygenPPresPtBldCoVQnPartial pressurePoint in time (spot)Blood cord venous

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 28649-2 | HealthAssure