LOINCObservation

LOINC Code 49249-6: Amino acids Nar [Interp]

49249-6 is a LOINC code used to identify Amino acids Nar [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 Amino acids. 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 Amino acids. 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: DEPRECATED
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Deprecated Amino acids [interpretation] in Serum or Plasma Narrative
  • Amino acids
  • AA; Acd; Acid; Amino acid; Amino acids.total; Chemistry; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; Pl; Plasma; Plsm; Point in time; Random; Report; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Amino acids Nar [Interp]Deprecated Amino acids [interpretation] in Serum or Plasma NarrativeDeprecated Amino acids SerPl-ImpAmino acidsCHEMInterpretation of Amino acids test result, BloodImp

Frequently asked questions

Code details

Code49249-6
SystemLOINC
Display nameAmino acids Nar [Interp]
DescriptionAmino acids
Short nameDeprecated Amino acids SerPl-Imp
ComponentAmino acids
PropertyImp
TimingPt
System (specimen)Ser/Plas
ScaleNar
ClassCHEM
StatusDEPRECATED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.48

Consumer names

Interpretation of Amino acids test result, Blood

Part names

Amino acidsImpPtSer/PlasNarImpression/interpretation of studyPoint 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 49249-6 | HealthAssure