LOINCActive

LOINC Code 33424-3: Breath sound qualifier by Auscultation

33424-3 is a LOINC code used to identify Breath sound qualifier by Auscultation 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 Breath sound qualifier. 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 Breath sound qualifier. 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
  • Method: Auscultation

What it does not mean

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

Key facts

  • Breath sound qualifier by Auscultation
  • Breath sound qualifier
  • Ausc; Breathing; Lung; Lungs; Nominal; Point in time; PULMONARY; Pulmonology; Random; Respiratory; RS; Typ

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

Breath sound qualifier by AuscultationBreath sound qualifier AuscultationBreath sound qualifierPULMTypePtRespiratory system

Frequently asked questions

Code details

Code33424-3
SystemLOINC
Display nameBreath sound qualifier by Auscultation
DescriptionBreath sound qualifier
Short nameBreath sound qualifier Auscultation
ComponentBreath sound qualifier
PropertyType
TimingPt
System (specimen)Respiratory system
ScaleNom
MethodAuscultation
ClassPULM
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.70

Part names

Breath sound qualifierTypePtRespiratory systemNomAuscultationPoint 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.

LOINC Code 33424-3 | HealthAssure