LOINCActive

LOINC Code 8556-3: Great toe arteries - right Systolic blood pressure

8556-3 is a LOINC code used to identify Great toe arteries - right Systolic blood pressure 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 Great toe arteries.right.

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 Great toe arteries.right.

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

  • Great toe arteries - right Systolic blood pressure
  • Intravascular systolic
  • Blood pressure; BLOOD PRESSURE MEASUREMENTS.MOLEC; Blood pressure systolic; BP; BP sys; BP systolic; Cardio; Cardiology; Great toe aa; Great toe aa-R; Heart Disease; Intravenous; IV; Phalange; Point in time; Pressure; QNT; Quan; Quant; Quantitative; R; Random; RT; 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

Great toe arteries - right Systolic blood pressureGreat toe aa-R BP sysIntravascular systolicBP.MOLECPresPtGreat toe arteries.right

Frequently asked questions

Code details

Code8556-3
SystemLOINC
Display nameGreat toe arteries - right Systolic blood pressure
DescriptionIntravascular systolic
Short nameGreat toe aa-R BP sys
ComponentIntravascular systolic
PropertyPres
TimingPt
System (specimen)Great toe arteries.right
ScaleQn
ClassBP.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 systolicPresPtGreat toe arteries.rightQnPressurePoint in time (spot)Great toe arteries Right

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.