LOINCActiveObservation

LOINC Code 76203-9: Pressure.occlusion Respiratory system airway --negative inspiratory force maneuver

76203-9 is a LOINC code used to identify Pressure.occlusion Respiratory system airway --negative inspiratory force maneuver 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.occlusion^negative inspiratory force maneuver. 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.occlusion^negative inspiratory force maneuver. 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.occlusion Respiratory system airway --negative inspiratory force maneuver
  • Pressure.occlusion^negative inspiratory force maneuver
  • The maximum negative airway pressure generated during an occluded inspiration arising from a Negative Inspiratory Force (NIF) maneuver. [IEEE]
  • Breathing; Lung; Lungs; NEG; NIF; 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

Pressure.occlusion Respiratory system airway --negative inspiratory force maneuverPressure.occl NIF AirwayPressure.occlusion^negative inspiratory force maneuverPULMPresPtRespiratory system.airway

Frequently asked questions

Code details

Code76203-9
SystemLOINC
Display namePressure.occlusion Respiratory system airway --negative inspiratory force maneuver
DescriptionPressure.occlusion^negative inspiratory force maneuver
Short namePressure.occl NIF Airway
ComponentPressure.occlusion^negative inspiratory force maneuver
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 released2.58
Last changed2.69

Part names

Pressure.occlusion^negative inspiratory force maneuverPresPtRespiratory 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.