LOINCActiveObservation

LOINC Code 80229-8: Percent stenosis of Additional second diagonal artery

80229-8 is a LOINC code used to identify Percent stenosis of Additional second 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 2a.

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 2a.

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 second diagonal artery
  • Stenosis degree
  • Art; CARD.PROC; Cardio; Cardiology; D2a; 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 second diagonal arteryPercent sten of D2aStenosis degreeCARD.PROCLenFrPtDiagonal artery 2a

Frequently asked questions

Code details

Code80229-8
SystemLOINC
Display namePercent stenosis of Additional second diagonal artery
DescriptionStenosis degree
Short namePercent sten of D2a
ComponentStenosis degree
PropertyLenFr
TimingPt
System (specimen)Diagonal artery 2a
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 2aQnLength fractionPoint in time (spot)Additional second 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.

LOINC Code 80229-8 | HealthAssure