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 57657-9: Disconnect sensitivity setting Ventilator alarm

Name: LOINC Code 57657-9: Disconnect sensitivity setting Ventilator alarm
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:38.757Z

57657-9 is a LOINC code used to identify Disconnect sensitivity setting Ventilator alarm 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 Disconnect sensitivity setting. It is commonly used with the system or sample type Ventilator.alarm.

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 Disconnect sensitivity setting. It is commonly used with the system or sample type Ventilator.alarm.

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

Disconnect sensitivity setting Ventilator alarm

Disconnect sensitivity setting

From the Puritan Bennett 840 Operator's and Technical Reference ManualThe DSENS setting defines the percentage of returned volume lost, above which the ventilator declares a CIRCUIT DISCONNECT alarm. When DSENS is set to its lowest value (20%), it has the highest sensitivity for detecting a disconnect or leak. When DSENS is set to its highest value (95%), the ventilator has the least sensitivity for detecting a circuit disconnection, as greater than 95% of the returned volume must be lost before the alarm occurs.

Lung; Percent; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; Vent alarm; 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

Disconnect sensitivity setting Ventilator alarmDisconnect sensitivity VFr Vent alarmDisconnect sensitivity settingPULMVFrPtVentilator.alarm

Frequently asked questions

Code details

Code57657-9

SystemLOINC

Display nameDisconnect sensitivity setting Ventilator alarm

DescriptionDisconnect sensitivity setting

Short nameDisconnect sensitivity VFr Vent alarm

ComponentDisconnect sensitivity setting

PropertyVFr

TimingPt

System (specimen)Ventilator.alarm

ScaleQn

ClassPULM

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.70

Part names

Disconnect sensitivity settingVFrPtVentilator.alarmQnVolume FractionPoint in time (spot)Ventilator alarm

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.