What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 96701-8: Carbon monoxide/Gas total corrected for ambient CO Exhaled gas --at end expiration

Name: LOINC Code 96701-8: Carbon monoxide/Gas total corrected for ambient CO Exhaled gas --at end expiration
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:27.591Z

96701-8 is a LOINC code used to identify Carbon monoxide/Gas total corrected for ambient CO Exhaled gas --at end 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 Carbon monoxide/gas.total^at end expiration^corrected for ambient CO. 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 monoxide/gas.total^at end expiration^corrected for ambient CO. 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
Order vs observation: Both

What it does not mean

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

Key facts

Carbon monoxide/Gas total corrected for ambient CO Exhaled gas --at end expiration
Carbon monoxide/gas.total^at end expiration^corrected for ambient CO
ambient CO cor; Breath; ETCOc; ExG; Exhaled gas; Exhaled gas (=breath); Exp; Gases; 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 monoxide/Gas total corrected for ambient CO Exhaled gas --at end expirationETCOcCarbon monoxide/gas.total^at end expiration^corrected for ambient COPULMVFrPtExhl gas

Frequently asked questions

Code details

Code96701-8

SystemLOINC

Display nameCarbon monoxide/Gas total corrected for ambient CO Exhaled gas --at end expiration

DescriptionCarbon monoxide/gas.total^at end expiration^corrected for ambient CO

Short nameETCOc

ComponentCarbon monoxide/gas.total^at end expiration^corrected for ambient CO

PropertyVFr

TimingPt

System (specimen)Exhl gas

ScaleQn

ClassPULM

Example units%

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.69

Last changed2.69

Part names

Carbon monoxide/gas.total^at end expiration^corrected for ambient COVFrPtExhl gasQnVolume 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.