LOINCActive

LOINC Code 69408-3: Orthostatic heart rate [Difference in rate]

69408-3 is a LOINC code used to identify Orthostatic heart rate [Difference in rate] 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 Orthostatic 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 Orthostatic 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

What it does not mean

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

Key facts

  • Orthostatic heart rate [Difference in rate]
  • Orthostatic heart rate
  • An elevation in heart rate that occurs when a patient moves from recumbency to standing may indicate compensation for decreased stroke volume
  • Art sys; Heart beat; HRTRATE.PSTN.MOLEC; Point in time; Pulse; 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

Orthostatic heart rate [Difference in rate]Orthostatic heart rate RatDiffOrthostatic heart rateHRTRATE.PSTN.MOLECRatDiffPtArterial system

Frequently asked questions

Code details

Code69408-3
SystemLOINC
Display nameOrthostatic heart rate [Difference in rate]
DescriptionOrthostatic heart rate
Short nameOrthostatic heart rate RatDiff
ComponentOrthostatic heart rate
PropertyRatDiff
TimingPt
System (specimen)Arterial system
ScaleQn
ClassHRTRATE.PSTN.MOLEC
Example unitsbeats/min
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.40

Part names

Orthostatic heart rateRatDiffPtArterial systemQnDifference in 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.

LOINC Code 69408-3 | HealthAssure