LOINCActive

LOINC Code 8481-4: Systolic blood pressure 1 hour maximum

8481-4 is a LOINC code used to identify Systolic blood pressure 1 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 Intravascular systolic. 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 Intravascular systolic. 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

  • Systolic blood pressure 1 hour maximum
  • Intravascular systolic
  • 1 hour; 1.0Hr; 1HR; 60 min; 60 minutes; 60M; 60min; Art sys; Blood pressure; BLOOD PRESSURE MEASUREMENTS.TIMED.MOLEC; Blood pressure systolic; BP; BP sys; BP systolic; Cardio; Cardiology; Heart Disease; Intravenous; IV; Maximum; Pressure; QNT; Quan; Quant; Quantitative; SBP; Sys BP

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

Systolic blood pressure 1 hour maximumBP sys 1h MaxIntravascular systolicBP.TIMED.MOLECPres1H^maxArterial system

Frequently asked questions

Code details

Code8481-4
SystemLOINC
Display nameSystolic blood pressure 1 hour maximum
DescriptionIntravascular systolic
Short nameBP sys 1h Max
ComponentIntravascular systolic
PropertyPres
Timing1H^max
System (specimen)Arterial system
ScaleQn
ClassBP.TIMED.MOLEC
Example unitsmm Hg
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(3)
Last changed2.40

Part names

Intravascular systolicPres1H^maxArterial systemQnPressure

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 8481-4 | HealthAssure