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.

LOINCActive

LOINC Code 20056-8: Airway pressure --at mean expiratory flow on ventilator

Name: LOINC Code 20056-8: Airway pressure --at mean expiratory flow on ventilator
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:28.844Z

20056-8 is a LOINC code used to identify Airway pressure --at mean expiratory flow on ventilator 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 Pressure.airway^at mean expiratory flow on ventilator. It is commonly used with the system or sample type Respiratory system.airway.

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 Pressure.airway^at mean expiratory flow on ventilator. It is commonly used with the system or sample type Respiratory system.airway.

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

Airway pressure --at mean expiratory flow on ventilator
Pressure.airway^at mean expiratory flow on ventilator
@ mean exp flow on vent; Average; Avg; Breathing; Dynamic; Lung; Lungs; MAP; MeP; PAW; Point in time; Pressure; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; RS

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

Airway pressure --at mean expiratory flow on ventilatorPAW @ mean exp flow on ventPressure.airway^at mean expiratory flow on ventilatorPULMPresPtRespiratory system.airway

Frequently asked questions

Code details

Code20056-8

SystemLOINC

Display nameAirway pressure --at mean expiratory flow on ventilator

DescriptionPressure.airway^at mean expiratory flow on ventilator

Short namePAW @ mean exp flow on vent

ComponentPressure.airway^at mean expiratory flow on ventilator

PropertyPres

TimingPt

System (specimen)Respiratory system.airway

ScaleQn

ClassPULM

Example unitscm H2O

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.73

Part names

Pressure.airway^at mean expiratory flow on ventilatorPresPtRespiratory system.airwayQnPressurePoint in time (spot)Respiratory system airway

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.