LOINCActiveObservation

LOINC Code 80915-2: Percent stenosis of Coronary artery segment

80915-2 is a LOINC code used to identify Percent stenosis of 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 Stenosis degree. 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 Stenosis degree. 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

  • Percent stenosis of Coronary artery segment
  • Stenosis degree
  • CARD.PROC; Cardio; Cardiology; Cor aa seg; Coronary aa; Heart; 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 Coronary artery segmentPercent sten of Cor aa segStenosis degreeCARD.PROCLenFrPtCoronary arteries.segment

Frequently asked questions

Code details

Code80915-2
SystemLOINC
Display namePercent stenosis of Coronary artery segment
DescriptionStenosis degree
Short namePercent sten of Cor aa seg
ComponentStenosis degree
PropertyLenFr
TimingPt
System (specimen)Coronary arteries.segment
ScaleQn
ClassCARD.PROC
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.56
Last changed2.56

Part names

Stenosis degreeLenFrPtCoronary arteries.segmentQnLength fractionPoint 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.