LOINCActiveBoth

LOINC Code 75935-7: Nitrogen dioxide [VFr/PPres] Airway adaptor --during expiration

75935-7 is a LOINC code used to identify Nitrogen dioxide [VFr/PPres] Airway adaptor --during expiration 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 Nitrogen dioxide^during expiration. It is commonly used with the system or sample type Airway adaptor.

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 Nitrogen dioxide^during expiration. It is commonly used with the system or sample type Airway adaptor.

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

What it does not mean

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

Key facts

  • Nitrogen dioxide [VFr/PPres] Airway adaptor --during expiration
  • Nitrogen dioxide^during expiration
  • The IEEE 11073 Standards Committee does not distinguish between measures of gas concentration reported as partial pressure and volume percent because they can be converted from one to the other under the law of gases. To make it clear that these could be reported either way, LOINC presents the property for these terms as both a volume fraction and a partial pressure (VFr/PPres), with corresponding units of %{vol} and mm[Hg], respectively.
  • Away adap; Exp; Lung; N; N2; Nit; NO2; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory

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

Nitrogen dioxide [VFr/PPres] Airway adaptor --during expirationNO2 during expir VFr/PPres Away adapNitrogen dioxide^during expirationPULMVFr/PPresPtAirway adaptor

Frequently asked questions

Code details

Code75935-7
SystemLOINC
Display nameNitrogen dioxide [VFr/PPres] Airway adaptor --during expiration
DescriptionNitrogen dioxide^during expiration
Short nameNO2 during expir VFr/PPres Away adap
ComponentNitrogen dioxide^during expiration
PropertyVFr/PPres
TimingPt
System (specimen)Airway adaptor
ScaleQn
ClassPULM
Example units%{vol}; mm[Hg]
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.56

Part names

Nitrogen dioxide^during expirationVFr/PPresPtAirway adaptorQnPoint 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.