LOINCActiveBoth

LOINC Code 1784-8: Alpha amino acid nitrogen (P) [Mass/Vol]

1784-8 is a LOINC code used to identify Alpha amino acid nitrogen (P) [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 Alpha amino acid nitrogen. It is commonly used with the system or sample type 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 Alpha amino acid nitrogen. It is commonly used with the system or sample type 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

  • Alpha amino acid nitrogen [Mass/volume] in Plasma
  • Alpha amino acid nitrogen
  • A-AA Nitrogen; AAN; Acd; Acids; Alfa; Chemistry; Level; Mass concentration; N; N2; Nit; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Alpha amino acid nitrogen (P) [Mass/Vol]Alpha amino acid nitrogen [Mass/volume] in PlasmaA-AA Nitrogen Plas-mCncAlpha amino acid nitrogenCHEMAlpha amino acid nitrogen, BloodMCnc

Frequently asked questions

Code details

Code1784-8
SystemLOINC
Display nameAlpha amino acid nitrogen (P) [Mass/Vol]
DescriptionAlpha amino acid nitrogen
Short nameA-AA Nitrogen Plas-mCnc
ComponentAlpha amino acid nitrogen
PropertyMCnc
TimingPt
System (specimen)Plas
ScaleQn
ClassCHEM
Example unitsmg/dL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Alpha amino acid nitrogen, Blood

Part names

Alpha amino acid nitrogenMCncPtPlasQnMass ConcentrationPoint in time (spot)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 1784-8 | HealthAssure