LOINCActive

LOINC Code 19959-6: Fractional oxyhemoglobin in Arterial blood --during treatment

19959-6 is a LOINC code used to identify Fractional oxyhemoglobin in Arterial blood --during treatment 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 Oxyhemoglobin/Hemoglobin.total^during treatment. 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 Oxyhemoglobin/Hemoglobin.total^during treatment. 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

What it does not mean

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

Key facts

  • Fractional oxyhemoglobin in Arterial blood --during treatment
  • Oxyhemoglobin/Hemoglobin.total^during treatment
  • ABG; ART; Art bld; Art blood; Arterial; Arterial blood; Blood arterial; during Tx; FO2Hb; Fractional hemoglobin; Haemoglobin; Haemoglobin oxygenated; Hb; HbO2; Hemoglobin oxygenated; Hgb; Lung; Mass Fraction; O2 saturation; O2Hb; Oxygen saturation; Oxygenated haemoglobin; Oxygenated hemoglobin; Oxyhaemoglobin; OxyHgb; OxyHgb %; Percent; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; SaO2; SO2; Tot; Totl; Tx

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

Fractional oxyhemoglobin in Arterial blood --during treatmentOxyHgb during Tx % BldAOxyhemoglobin/Hemoglobin.total^during treatmentPULMMFrPtBldA

Frequently asked questions

Code details

Code19959-6
SystemLOINC
Display nameFractional oxyhemoglobin in Arterial blood --during treatment
DescriptionOxyhemoglobin/Hemoglobin.total^during treatment
Short nameOxyHgb during Tx % BldA
ComponentOxyhemoglobin/Hemoglobin.total^during treatment
PropertyMFr
TimingPt
System (specimen)BldA
ScaleQn
ClassPULM
Example units%
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Oxyhemoglobin/Hemoglobin.total^during treatmentMFrPtBldAQnMass 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.