What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 76522-2: Transmission Arterial blood Pulse oximetry

Name: LOINC Code 76522-2: Transmission Arterial blood Pulse oximetry
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:56.389Z

76522-2 is a LOINC code used to identify Transmission Arterial blood Pulse oximetry 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 Transmission. It is commonly used with the system or sample type BldA.

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 Transmission. It is commonly used with the system or sample type BldA.

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: Pulse oximetry

What it does not mean

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

Key facts

Transmission Arterial blood Pulse oximetry
Transmission
%; ABG; ART; Art bld; Art blood; Arterial; Arterial blood; Blood arterial; Cardio; Cardiology; CARDIO-PULM; Heart Disease; Lung; Point in time; Pulmonary; Pulmonology; PulseOx; QNT; Quan; Quant; Quantitative; Random; Respiratory; SpO2

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

Transmission Arterial blood Pulse oximetryTransmission % BldA PulseOxTransmissionCARDIO-PULMAFrPtBldA

Frequently asked questions

Code details

Code76522-2

SystemLOINC

Display nameTransmission Arterial blood Pulse oximetry

DescriptionTransmission

Short nameTransmission % BldA PulseOx

ComponentTransmission

PropertyAFr

TimingPt

System (specimen)BldA

ScaleQn

MethodPulse oximetry

ClassCARDIO-PULM

Example units%

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Part names

TransmissionAFrPtBldAQnPulse oximetryArbitrary fractionPoint in time (spot)Blood arterial

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.