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 89578-9: Troponin I.cardiac High sensitivity method Ql [Interp]

Name: LOINC Code 89578-9: Troponin I.cardiac High sensitivity method Ql [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:18.536Z

89578-9 is a LOINC code used to identify Troponin I.cardiac High sensitivity method Ql [Interp] 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 Troponin I.cardiac. It is commonly used with the system or sample type Ser/Plas.

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 Troponin I.cardiac. It is commonly used with the system or sample type Ser/Plas.

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: High sensitivity

What it does not mean

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

Key facts

Troponin I.cardiac [Interpretation] in Serum or Plasma Qualitative by High sensitivity method
Troponin I.cardiac
Chemistry; cTnI; HS; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Ordinal; Pl; Plasma; Plsm; Point in time; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; TnI; TrI; Trop I; Troponin

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

Troponin I.cardiac High sensitivity method Ql [Interp]Troponin I.cardiac [Interpretation] in Serum or Plasma Qualitative by High sensitivity methodTroponin I SerPl HS-ImpTroponin I.cardiacCHEMTroponin I, BloodImp

Frequently asked questions

Code details

Code89578-9

SystemLOINC

Display nameTroponin I.cardiac High sensitivity method Ql [Interp]

DescriptionTroponin I.cardiac

Short nameTroponin I SerPl HS-Imp

ComponentTroponin I.cardiac

PropertyImp

TimingPt

System (specimen)Ser/Plas

ScaleOrd

MethodHigh sensitivity

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.64

Last changed2.66

Consumer names

Troponin I, Blood

Part names

Troponin I.cardiacImpPtSer/PlasOrdHigh sensitivityImpression/interpretation of studyPoint in time (spot)Serum or PlasmaHigh sensitivity method

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.