LOINCActive

LOINC Code 8888-0: Heart rate measure duration

8888-0 is a LOINC code used to identify Heart rate measure duration 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 Heart rate measure duration. It is commonly used with the system or sample type Heart study.

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 Heart rate measure duration. It is commonly used with the system or sample type Heart study.

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

  • Heart rate measure duration
  • Cardiac; Cardio; Cardiology; Durat; Envelope duration; Heart beat; Heart Disease; HEART RATE.ATOM; Hrt; Pulse; QNT; Quan; Quant; Quantitative

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

Heart rate measure durationHRTRATE.ATOMTime*Heart studyQnTime (e.g. seconds)

Frequently asked questions

Code details

Code8888-0
SystemLOINC
Display nameHeart rate measure duration
Short nameHeart rate measure duration
ComponentHeart rate measure duration
PropertyTime
Timing*
System (specimen)Heart study
ScaleQn
ClassHRTRATE.ATOM
Example unitss; min
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(3)
Last changed2.48

Part names

Heart rate measure durationTime*Heart studyQnTime (e.g. seconds)

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 8888-0 | HealthAssure