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.

LOINCActiveBoth

LOINC Code 101912-4: Troponin T.cardiac delta (2H) [Mass conc diff]

Name: LOINC Code 101912-4: Troponin T.cardiac delta (2H) [Mass conc diff]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.451Z

101912-4 is a LOINC code used to identify Troponin T.cardiac delta (2H) [Mass conc diff] 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 T.cardiac delta. 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 T.cardiac delta. 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: Both

What it does not mean

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

Key facts

Troponin T.cardiac delta [Mass concentration difference] in 2 hour Serum or Plasma
Troponin T.cardiac delta
120 min; 120 minutes; 120min; 2 hours; 2HR; Chemistry; cTnT; MCDiff; Pl; Plasma; Plsm; QNT; Quan; Quant; Quantitative; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; T prime; TnT; Troponin; Troponin T. D

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 T.cardiac delta (2H) [Mass conc diff]Troponin T.cardiac delta [Mass concentration difference] in 2 hour Serum or PlasmaTroponin T. D 2h SerPl-MCDiffTroponin T.cardiac deltaCHEMTroponin T.cardiac delta, BloodMCncDiff

Frequently asked questions

Code details

Code101912-4

SystemLOINC

Display nameTroponin T.cardiac delta (2H) [Mass conc diff]

DescriptionTroponin T.cardiac delta

Short nameTroponin T. D 2h SerPl-MCDiff

ComponentTroponin T.cardiac delta

PropertyMCncDiff

Timing2H

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsng/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.75

Last changed2.76

Consumer names

Troponin T.cardiac delta, Blood

Part names

Troponin T.cardiac deltaMCncDiff2HSer/PlasQnMass concentration difference2 hoursSerum or Plasma

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.