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.

LOINCActiveObservation

LOINC Code 76531-3: Pressure.max Respiratory system airway --on ventilator

Name: LOINC Code 76531-3: Pressure.max Respiratory system airway --on ventilator
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:56.389Z

76531-3 is a LOINC code used to identify Pressure.max Respiratory system airway --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.max^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.max^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
Order vs observation: Observation

What it does not mean

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

Key facts

Pressure.max Respiratory system airway --on ventilator
Pressure.max^on ventilator
Breathing; Largest; Lung; Lungs; Maximal; Maximum; Peak; Point in time; Press.max; Pressure; Pressure max; 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

Pressure.max Respiratory system airway --on ventilatorPress.max on vent AirwayPressure.max^on ventilatorPULMPresPtRespiratory system.airway

Frequently asked questions

Code details

Code76531-3

SystemLOINC

Display namePressure.max Respiratory system airway --on ventilator

DescriptionPressure.max^on ventilator

Short namePress.max on vent Airway

ComponentPressure.max^on ventilator

PropertyPres

TimingPt

System (specimen)Respiratory system.airway

ScaleQn

ClassPULM

Example unitscm H2O

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.63

Last changed2.63

Part names

Pressure.max^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.