LOINCActive

LOINC Code 56875-8: Mixed venous oxygen saturation monitoring (set)

56875-8 is a LOINC code used to identify Mixed venous oxygen saturation monitoring (set) 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 Mixed venous oxygen saturation monitoring. It is commonly used with the system or sample type ^Patient.

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 Mixed venous oxygen saturation monitoring. It is commonly used with the system or sample type ^Patient.

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

What it does not mean

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

Key facts

  • Mixed venous oxygen saturation monitoring (set)
  • Mixed venous oxygen saturation monitoring
  • Mixed venous oxygen saturation monitoring (indwelling catheter)
  • Complex; DEEDS; Emergency Department; EMERGENCY DEPARTMENT (DEEDS); Mixed venous O2 sat monitoring; O2; SaO2; SAT; Satn; 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

Mixed venous oxygen saturation monitoring (set)Mixed venous O2 sat monitoringMixed venous oxygen saturation monitoringEDCmplx-^Patient

Frequently asked questions

Code details

Code56875-8
SystemLOINC
Display nameMixed venous oxygen saturation monitoring (set)
DescriptionMixed venous oxygen saturation monitoring
Short nameMixed venous O2 sat monitoring
ComponentMixed venous oxygen saturation monitoring
PropertyCmplx
Timing-
System (specimen)^Patient
ScaleSet
ClassED
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.29

Part names

Mixed venous oxygen saturation monitoringCmplx-^PatientSetComplex

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.