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 33457-3: Compliance of last 20% of breath/Compliance of entire breath

Name: LOINC Code 33457-3: Compliance of last 20% of breath/Compliance of entire breath
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:20.069Z

33457-3 is a LOINC code used to identify Compliance of last 20% of breath/Compliance of entire breath 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 Compliance of last 20% of breath/Compliance of entire breath. It is commonly used with the system or sample type Respiratory system.

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 Compliance of last 20% of breath/Compliance of entire breath. It is commonly used with the system or sample type Respiratory system.

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

Compliance of last 20% of breath/Compliance of entire breath
Breathing; Compl last 20% of breath; Compliance ratio; Lung; Lungs; Past; Point in time; 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

Compliance of last 20% of breath/Compliance of entire breathCompl last 20% of breath/Entire breathPULMCompliRtoPtRespiratory systemQn

Frequently asked questions

Code details

Code33457-3

SystemLOINC

Display nameCompliance of last 20% of breath/Compliance of entire breath

Short nameCompl last 20% of breath/Entire breath

ComponentCompliance of last 20% of breath/Compliance of entire breath

PropertyCompliRto

TimingPt

System (specimen)Respiratory system

ScaleQn

ClassPULM

Example unitsratio

StatusACTIVE

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.48

Part names

Compliance of last 20% of breath/Compliance of entire breathCompliRtoPtRespiratory systemQnCompliance RatioPoint in time (spot)

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.