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 80228-0: Percent stenosis of Additional first diagonal artery

Name: LOINC Code 80228-0: Percent stenosis of Additional first diagonal artery
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.839Z

80228-0 is a LOINC code used to identify Percent stenosis of Additional first diagonal artery 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 Stenosis degree. It is commonly used with the system or sample type Diagonal artery 1a.

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 Stenosis degree. It is commonly used with the system or sample type Diagonal artery 1a.

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

What it does not mean

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

Key facts

Percent stenosis of Additional first diagonal artery
Stenosis degree
Art; CARD.PROC; Cardio; Cardiology; D1a; Heart Disease; Length Fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Sten deg

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

Percent stenosis of Additional first diagonal arteryPercent sten of D1aStenosis degreeCARD.PROCLenFrPtDiagonal artery 1a

Frequently asked questions

Code details

Code80228-0

SystemLOINC

Display namePercent stenosis of Additional first diagonal artery

DescriptionStenosis degree

Short namePercent sten of D1a

ComponentStenosis degree

PropertyLenFr

TimingPt

System (specimen)Diagonal artery 1a

ScaleQn

ClassCARD.PROC

Example units%

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.54

Part names

Stenosis degreeLenFrPtDiagonal artery 1aQnLength fractionPoint in time (spot)Additional first diagonal artery

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.