LOINCActiveObservation

LOINC Code 49483-1: HIV 1 IA Nar [Interp]

49483-1 is a LOINC code used to identify HIV 1 IA 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 HIV 1. 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 HIV 1. 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: Observation
  • Method: IA

What it does not mean

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

Key facts

  • HIV 1 [Interpretation] in Serum or Plasma by Immunoassay Narrative
  • HIV 1
  • AIDS; EIA; ELFA; ELISA; Enzyme immunoassay; HIV type 1; HIV type I; HIV1; Human immunodeficiency virus; i; IAA; ID; Impression; Impression/interpretation of study; Impressions; Infectious Disease; InfectiousDisease; Interp; Interpretation; MEIA; Microbiology; Narrative; Pl; Plasma; Plsm; Point in time; Random; Report; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SUDS

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

HIV 1 IA Nar [Interp]HIV 1 [Interpretation] in Serum or Plasma by Immunoassay NarrativeHIV1 SerPl IA-ImpHIV 1MICROInterpretation of HIV 1 test result, BloodImp

Frequently asked questions

Code details

Code49483-1
SystemLOINC
Display nameHIV 1 IA Nar [Interp]
DescriptionHIV 1
Short nameHIV1 SerPl IA-Imp
ComponentHIV 1
PropertyImp
TimingPt
System (specimen)Ser/Plas
ScaleNar
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.56

Consumer names

Interpretation of HIV 1 test result, Blood

Part names

HIV 1ImpPtSer/PlasNarIAImpression/interpretation of studyPoint in time (spot)Serum or PlasmaImmunoassay

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 49483-1 | HealthAssure