LOINCActiveBoth

LOINC Code 82266-8: Estimated Activity metabolic rate/Measured RMR [Relative energy/Time]

82266-8 is a LOINC code used to identify Estimated Activity metabolic rate/Measured RMR [Relative energy/Time] 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 Activity metabolic rate/Measured resting metabolic rate. 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 Activity metabolic rate/Measured resting metabolic rate. 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
  • Order vs observation: Both
  • Method: Estimated

What it does not mean

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

Key facts

Estimated Activity metabolic rate/Measured RMR [Relative energy/Time]
Activity metabolic rate/Measured resting metabolic rate
The measured metabolic equivalent of task (MET) calculated based on estimated exercise metabolic rate and the measured resting metabolic rate (RMR). The RMR can be measured using different indirect and direct calorimetry methods, and the method used is reported using [LOINC82296-5].
1 minute; Act metab rate; Activ; Activity; Actvty; Average; Avg; Basal Metabolic Rate; BMR; CLIN; EE; Energy expenditure; Est; estimation; Exercise; Meas RMR; Movements; QNT; Quan; Quant; Quantitative; RMR

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

Estimated Activity metabolic rate/Measured RMR [Relative energy/Time]Est Act metab rate/Meas RMRActivity metabolic rate/Measured resting metabolic rateCLINAverage Activity metabolic rate/Measured RMR in 1 Minute, EstRelEngRat1M^mean

Frequently asked questions

Code details

Code82266-8
SystemLOINC
Display nameEstimated Activity metabolic rate/Measured RMR [Relative energy/Time]
DescriptionActivity metabolic rate/Measured resting metabolic rate
Short nameEst Act metab rate/Meas RMR
ComponentActivity metabolic rate/Measured resting metabolic rate
PropertyRelEngRat
Timing1M^mean
System (specimen)^Patient
ScaleQn
MethodEstimated
ClassCLIN
Example units[MET]
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.72

Consumer names

Average Activity metabolic rate/Measured RMR in 1 Minute, Est

Part names

Activity metabolic rate/Measured resting metabolic rateRelEngRat1M^mean^PatientQnEstimatedRelative Energy/Time

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 82266-8 | HealthAssure