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LOINC Code 57462-4: Normetanephrine Free [Mass/Vol]

57462-4 is a LOINC code used to identify Normetanephrine Free [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 Normetanephrine.free. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Normetanephrine.free. 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

  • Normetanephrine Free [Mass/volume] in Serum or Plasma
  • Normetanephrine.free
  • Chemistry; FR; Level; Mass concentration; Non-protein bound; Normeta; Normetaneph; Normetaneph Free; Normetanephrn; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Unconjugated normetanephrine

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

Normetanephrine Free [Mass/Vol]Normetanephrine Free [Mass/volume] in Serum or PlasmaNormetaneph Free SerPl-mCncNormetanephrine.freeCHEMFree normetanephrine, BloodMCnc

Frequently asked questions

Code details

Code57462-4
SystemLOINC
Display nameNormetanephrine Free [Mass/Vol]
DescriptionNormetanephrine.free
Short nameNormetaneph Free SerPl-mCnc
ComponentNormetanephrine.free
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitspg/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.73

Consumer names

Free normetanephrine, Blood

Part names

Normetanephrine.freeMCncPtSer/PlasQnNormetanephrine FreeMass ConcentrationPoint in time (spot)Serum 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.

LOINC Code 57462-4 | HealthAssure