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 80999-6: Segment(s) affected by lesion Coronary artery segment

Name: LOINC Code 80999-6: Segment(s) affected by lesion Coronary artery segment
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:03.794Z

80999-6 is a LOINC code used to identify Segment(s) affected by lesion Coronary artery segment 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 Segment(s) affected by lesion. It is commonly used with the system or sample type Coronary arteries.segment.

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 Segment(s) affected by lesion. It is commonly used with the system or sample type Coronary arteries.segment.

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

Segment(s) affected by lesion Coronary artery segment
Segment(s) affected by lesion
CARD.PROC; Cardio; Cardiology; Cor aa seg; Coronary aa; Finding; Findings; Heart; Heart Disease; Nominal; Point in time; Random; S prime; Segments affected

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

Segment(s) affected by lesion Coronary artery segmentSegments affected Cor aa segSegment(s) affected by lesionCARD.PROCFindPtCoronary arteries.segment

Frequently asked questions

Code details

Code80999-6

SystemLOINC

Display nameSegment(s) affected by lesion Coronary artery segment

DescriptionSegment(s) affected by lesion

Short nameSegments affected Cor aa seg

ComponentSegment(s) affected by lesion

PropertyFind

TimingPt

System (specimen)Coronary arteries.segment

ScaleNom

ClassCARD.PROC

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.56

Last changed2.56

Part names

Segment(s) affected by lesionFindPtCoronary arteries.segmentNomFindingPoint in time (spot)Coronary artery segment

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.