LOINCActive

LOINC Code 20131-9: Volume Thoracic gas by Plethysmograph body box

20131-9 is a LOINC code used to identify Volume Thoracic gas by Plethysmograph body box 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 Volume. It is commonly used with the system or sample type Thoracic gas.

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 Volume. It is commonly used with the system or sample type Thoracic gas.

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: Plethysmograph.body box

What it does not mean

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

Key facts

  • Volume Thoracic gas by Plethysmograph body box
  • Volume
  • bod; Bodies; Gases; Lung; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; Vol; Volume

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

Volume Thoracic gas by Plethysmograph body boxVolume Thoracic gas PlethysmographVolumePULMVolPtThoracic gas

Frequently asked questions

Code details

Code20131-9
SystemLOINC
Display nameVolume Thoracic gas by Plethysmograph body box
DescriptionVolume
Short nameVolume Thoracic gas Plethysmograph
ComponentVolume
PropertyVol
TimingPt
System (specimen)Thoracic gas
ScaleQn
MethodPlethysmograph.body box
ClassPULM
Example unitsL
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.48

Part names

VolumeVolPtThoracic gasQnPlethysmograph.body boxPoint in time (spot)Plethysmograph body box

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 20131-9 | HealthAssure