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.

LOINCActiveObservation

LOINC Code 74009-2: Exercise duration/Exercise frequency

Name: LOINC Code 74009-2: Exercise duration/Exercise frequency
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:53.973Z

74009-2 is a LOINC code used to identify Exercise duration/Exercise frequency 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 Exercise duration/Exercise frequency. 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 Exercise duration/Exercise frequency. 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: Observation

What it does not mean

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

Key facts

Exercise duration/Exercise frequency
Activity; CLIN; Count/time; Durat; EXCZ; Exercise; nRate; Number rate; Number Rate = Count/Time; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Exercise duration/Exercise frequencyExercise duration/freqCLINExercise durationNRatPt^Patient

Frequently asked questions

Code details

Code74009-2

SystemLOINC

Display nameExercise duration/Exercise frequency

Short nameExercise duration/freq

ComponentExercise duration/Exercise frequency

PropertyNRat

TimingPt

System (specimen)^Patient

ScaleQn

ClassCLIN

Example units/week

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.46

Last changed2.46

Consumer names

Exercise duration

Part names

Exercise duration/Exercise frequencyNRatPt^PatientQnNumber RatePoint 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.