LOINCActiveObservation

LOINC Code 73803-9: Oxygen saturation sensor type

73803-9 is a LOINC code used to identify Oxygen saturation sensor type 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 sensor type. It is commonly used with the system or sample type Oxygen saturation device.

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 Oxygen saturation sensor type. It is commonly used with the system or sample type Oxygen saturation device.

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 saturation sensor type
  • The sensor type indicates whether the sensor is single-use (disposable) or reusable.
  • Nominal; O2; Point in time; Random; SaO2; SaO2% Device; SaO2% sensor type; SAT; Satn; SO2; tO2; Typ

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 sensor typeSaO2% Device SaO2% sensor typeDEVICESTypePtOxygen saturation deviceNom

Frequently asked questions

Code details

Code73803-9
SystemLOINC
Display nameOxygen saturation sensor type
Short nameSaO2% Device SaO2% sensor type
ComponentOxygen saturation sensor type
PropertyType
TimingPt
System (specimen)Oxygen saturation device
ScaleNom
ClassDEVICES
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.52

Part names

Oxygen saturation sensor typeTypePtOxygen saturation deviceNomPoint 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 73803-9 | HealthAssure