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LOINC Code 19215-3: Oxygen saturation adjusted to 0.5 (BldC) [Partial pressure]

19215-3 is a LOINC code used to identify Oxygen saturation adjusted to 0.5 (BldC) [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^^saturation adjusted to 0.5. It is commonly used with the system or sample type BldC.

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^^saturation adjusted to 0.5. It is commonly used with the system or sample type BldC.

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

  • Oxygen [Partial pressure] saturation adjusted to 0.5 in Capillary blood
  • Oxygen^^saturation adjusted to 0.5
  • The pO2 of a given blood sample at which hemoglobin of the blood is hald saturated
  • adj; Blood - capillary; Cap bld; Cap blood; Capillary bld; Capillary blood; Chemistry; Finger stick; Lung; O2; O2 partial pressure; p50; Partial pressure; PO2; Point in time; Pulmonary; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; SaO2; SAT; Satn; satn adj to 0.5; SO2; 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 saturation adjusted to 0.5 (BldC) [Partial pressure]Oxygen [Partial pressure] saturation adjusted to 0.5 in Capillary bloodpO2 satn adj to 0.5 BldCOxygen^^saturation adjusted to 0.5CHEMOxygen Saturation Adjusted to 0.5, BloodPPres

Frequently asked questions

Code details

Code19215-3
SystemLOINC
Display nameOxygen saturation adjusted to 0.5 (BldC) [Partial pressure]
DescriptionOxygen^^saturation adjusted to 0.5
Short namepO2 satn adj to 0.5 BldC
ComponentOxygen^^saturation adjusted to 0.5
PropertyPPres
TimingPt
System (specimen)BldC
ScaleQn
ClassCHEM
Example unitsmm Hg
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.30

Consumer names

Oxygen Saturation Adjusted to 0.5, Blood

Part names

Oxygen^^saturation adjusted to 0.5PPresPtBldCQnPartial pressurePoint in time (spot)Blood capillary

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 19215-3 | HealthAssure