LOINCActiveObservation

LOINC Code 55426-1: Heart rate unspecified time maximum by Pedometer

55426-1 is a LOINC code used to identify Heart rate unspecified time maximum by Pedometer 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 Arterial system.

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 Arterial system.

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
  • Method: Pedometer

What it does not mean

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

Key facts

  • Heart rate unspecified time maximum by Pedometer
  • Heart rate
  • ?Tm; Art sys; Count/time; Heart beat; HEART RATE.MOLEC; Maximum; nRate; Number rate; Number Rate = Count/Time; 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 unspecified time maximum by PedometerHeart rate ?Tm Max PedometerHeart rateHRTRATE.MOLECMaximum Heart rate in Unspecified TimeNRatXXX^max

Frequently asked questions

Code details

Code55426-1
SystemLOINC
Display nameHeart rate unspecified time maximum by Pedometer
DescriptionHeart rate
Short nameHeart rate ?Tm Max Pedometer
ComponentHeart rate
PropertyNRat
TimingXXX^max
System (specimen)Arterial system
ScaleQn
MethodPedometer
ClassHRTRATE.MOLEC
Example unitsbeats/min
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.27
Last changed2.70

Consumer names

Maximum Heart rate in Unspecified Time

Part names

Heart rateNRatXXX^maxArterial systemQnPedometerNumber 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 55426-1 | HealthAssure