LOINCActiveBoth

LOINC Code 71425-3: Natriuretic peptide.B prohormone N-Terminal IA (Bld) [Mass/Vol]

71425-3 is a LOINC code used to identify Natriuretic peptide.B prohormone N-Terminal IA (Bld) [Mass/Vol] 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 Natriuretic peptide.B prohormone N-Terminal. It is commonly used with the system or sample type Bld.

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 Natriuretic peptide.B prohormone N-Terminal. It is commonly used with the system or sample type Bld.

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
  • Method: IA

What it does not mean

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

Key facts

  • Natriuretic peptide.B prohormone N-Terminal [Mass/volume] in Blood by Immunoassay
  • Natriuretic peptide.B prohormone N-Terminal
  • This term refers to point of care (often CLIA waived) testing in a clinical or lab setting for the quantitative measurement of N-terminal-pro B-type Natriuretic Peptide (NT-proBNP) in whole blood. This term was created for, but not limited to, Mitsubishi Chemical Medience's PATHFAST® NTproBNP test kit for whole blood specimens. For NT-proBNP testing on serum or plasma, see LOINC 33762-6.
  • Beta Natriuretic Peptide; Blood; BNP; Brain Natriuretic Peptide; B-type natriuretic peptide; Cardio; Cardiology; Chemistry; EIA; ELFA; ELISA; Enzyme immunoassay; Heart Disease; IAA; Level; Mass concentration; MEIA; Natriutietic peptide.B; NTproBNP; NT-proBNP; Pept; Point in time; proBNP; Pro-brain natriuretic peptide; QNT; Quan; Quant; Quantitative; Random; SUDS; WB; Whole blood

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

Natriuretic peptide.B prohormone N-Terminal IA (Bld) [Mass/Vol]Natriuretic peptide.B prohormone N-Terminal [Mass/volume] in Blood by ImmunoassayNT-proBNP Bld IA-mCncNatriuretic peptide.B prohormone N-TerminalCHEMNatriuretic Peptide.B Prohormone N-Terminal, BloodMCnc

Frequently asked questions

Code details

Code71425-3
SystemLOINC
Display nameNatriuretic peptide.B prohormone N-Terminal IA (Bld) [Mass/Vol]
DescriptionNatriuretic peptide.B prohormone N-Terminal
Short nameNT-proBNP Bld IA-mCnc
ComponentNatriuretic peptide.B prohormone N-Terminal
PropertyMCnc
TimingPt
System (specimen)Bld
ScaleQn
MethodIA
ClassCHEM
Example unitspg/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.40
Last changed2.73

Consumer names

Natriuretic Peptide.B Prohormone N-Terminal, Blood

Part names

Natriuretic peptide.B prohormone N-TerminalMCncPtBldQnIAMass ConcentrationPoint in time (spot)BloodImmunoassay

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.