LOINCActive

LOINC Code 41971-3: Total metabolism [Mass] 24 hour

41971-3 is a LOINC code used to identify Total metabolism [Mass] 24 hour 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 Total metabolism. It is commonly used with the system or sample type ^Patient.

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 Total metabolism. It is commonly used with the system or sample type ^Patient.

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

  • Total metabolism [Mass] 24 hour
  • Total metabolism
  • 1 day; 24 hours; 24HR; CLIN; QNT; Quan; Quant; Quantitative; Tot; Totl

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

Total metabolism [Mass] 24 hourTotal Metabolism 24hTotal metabolismCLINTotal metabolism in 24 HoursMass24H

Frequently asked questions

Code details

Code41971-3
SystemLOINC
Display nameTotal metabolism [Mass] 24 hour
DescriptionTotal metabolism
Short nameTotal Metabolism 24h
ComponentTotal metabolism
PropertyMass
Timing24H
System (specimen)^Patient
ScaleQn
ClassCLIN
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.27

Consumer names

Total metabolism in 24 Hours

Part names

Total metabolismMass24H^PatientQn24 hours

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 41971-3 | HealthAssure