LOINCActive

LOINC Code 19888-7: Carbon dioxide/Gas.total.at end expiration in Exhaled gas by Infrared absorption

19888-7 is a LOINC code used to identify Carbon dioxide/Gas.total.at end expiration in Exhaled gas by Infrared absorption 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 Carbon dioxide/Gas.total.at end expiration. It is commonly used with the system or sample type Exhl gas.

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 Carbon dioxide/Gas.total.at end expiration. It is commonly used with the system or sample type Exhl gas.

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
  • Method: Infrared absorption

What it does not mean

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

Key facts

  • Carbon dioxide/Gas.total.at end expiration in Exhaled gas by Infrared absorption
  • Carbon dioxide/Gas.total.at end expiration
  • Absorp; Breath; Carbonic anhydride; cO2; ExG; Exhaled gas; Exhaled gas (=breath); Exp; Gases; IR; IR Abs; Lung; Percent; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; Tot; Totl; Volfr; Volume fraction

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

Carbon dioxide/Gas.total.at end expiration in Exhaled gas by Infrared absorptionCO2 VFr ExG IR AbsCarbon dioxide/Gas.total.at end expirationPULMVFrPtExhl gas

Frequently asked questions

Code details

Code19888-7
SystemLOINC
Display nameCarbon dioxide/Gas.total.at end expiration in Exhaled gas by Infrared absorption
DescriptionCarbon dioxide/Gas.total.at end expiration
Short nameCO2 VFr ExG IR Abs
ComponentCarbon dioxide/Gas.total.at end expiration
PropertyVFr
TimingPt
System (specimen)Exhl gas
ScaleQn
MethodInfrared absorption
ClassPULM
Example units%
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.34

Part names

Carbon dioxide/Gas.total.at end expirationVFrPtExhl gasQnInfrared absorptionVolume FractionPoint in time (spot)Exhaled gas

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.