What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 80256-1: Posterior descending branch from left circumflex artery [Presence] on Angiogram

Name: LOINC Code 80256-1: Posterior descending branch from left circumflex artery [Presence] on Angiogram
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:03.792Z

80256-1 is a LOINC code used to identify Posterior descending branch from left circumflex artery [Presence] on Angiogram 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 Posterior descending from left circumflex artery. It is commonly used with the system or sample type Coronary arteries.

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 Posterior descending from left circumflex artery. It is commonly used with the system or sample type Coronary arteries.

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: Angiogram

What it does not mean

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

Key facts

Posterior descending branch from left circumflex artery [Presence] on Angiogram
Posterior descending from left circumflex artery
Ang; Angio; Angm; CARD.PROC; Cardio; Cardiology; Coronary aa; Heart; Heart Disease; L; L-PDA; LT; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen

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

Posterior descending branch from left circumflex artery [Presence] on AngiogramL-PDA Pr on AngioPosterior descending from left circumflex arteryCARD.PROCPrThrPtCoronary arteries

Frequently asked questions

Code details

Code80256-1

SystemLOINC

Display namePosterior descending branch from left circumflex artery [Presence] on Angiogram

DescriptionPosterior descending from left circumflex artery

Short nameL-PDA Pr on Angio

ComponentPosterior descending from left circumflex artery

PropertyPrThr

TimingPt

System (specimen)Coronary arteries

ScaleOrd

MethodAngiogram

ClassCARD.PROC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.66

Part names

Posterior descending from left circumflex arteryPrThrPtCoronary arteriesOrdAngiogramPosterior descending branch from left circumflex arteryPresence or ThresholdPoint in time (spot)Cardiac angiogram

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.