LOINCActive

LOINC Code 8873-2: Heart rate 24 hour maximum

8873-2 is a LOINC code used to identify Heart rate 24 hour maximum 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. It is commonly used with the system or sample type XXX.

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. It is commonly used with the system or sample type XXX.

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 24 hour maximum
  • Heart rate
  • 1 day; 24 hours; 24HR; Count/time; Heart beat; HEART RATE.TIMED.MOL; Maximum; Misc; Miscellaneous; nRate; Number rate; Number Rate = Count/Time; Other; Pulse; QNT; Quan; Quant; Quantitative; Spec; To be specified in another part of the message; Unspecified

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 24 hour maximumHeart rate 24h MaxHeart rateHRTRATE.TIMED.MOLMaximum Heart rate in 24 HoursNRat24H^max

Frequently asked questions

Code details

Code8873-2
SystemLOINC
Display nameHeart rate 24 hour maximum
DescriptionHeart rate
Short nameHeart rate 24h Max
ComponentHeart rate
PropertyNRat
Timing24H^max
System (specimen)XXX
ScaleQn
ClassHRTRATE.TIMED.MOL
Example unitsbeats/min
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(3)
Last changed2.42

Consumer names

Maximum Heart rate in 24 Hours

Part names

Heart rateNRat24H^maxXXXQnNumber Rate

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 8873-2 | HealthAssure