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LOINC Code 77685-6: HIV 1 and 2 IgG IB Nom

77685-6 is a LOINC code used to identify HIV 1 and 2 IgG IB Nom 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 & 2 Ab.IgG. 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 & 2 Ab.IgG. 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
  • Method: IB

What it does not mean

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

Key facts

HIV 1 and 2 IgG Ab [Identifier] in Serum or Plasma by Immunoblot
HIV 1 & 2 Ab.IgG
This assay differentiates between HIV-1 and HIV-2 infections and is intended as a supplementary assay on specimens found to be reactive using an anti-HIV screening procedure. Five HIV-1 antigens are used in the testingsgp120 and gp41, which detect HIV-1 specific antibodies, and p31, p24, and p17, which may also cross-react with antibodies to HIV-2. HIV-1 group O peptides are present in the HIV-1 sgp120 band. The antigens gp36 and sgp105 are used to detect HIV-2 antibodies. This term was created for, but not termed in use to, the submitter's INNO-LIA™ HIV I/II Score test kit, which is a line immunoassay, to confirm the presence of antibodies against the human immunodeficiency virus type 1 (HIV-1), including group O, and type 2 (HIV-2) in human serum or plasma.
ABS; Aby; AIDS; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Blt; HIV 1 and 2 Ab; HIV type 1; HIV type I; HIV1; HIV1+2; Human immunodeficiency virus; i; ID; Identity or presence; II; Immune blot; Immune globulin G; Immunobl; Immunoblot; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Nominal; Pl; Plasma; Plsm; Point in time; Random; RIBA; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; WB; WBLOT; West blot; West blt; Western blot

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 and 2 IgG IB NomHIV 1 and 2 IgG Ab [Identifier] in Serum or Plasma by ImmunoblotHIV 1 & 2 IgG SerPl IBHIV 1 & 2 Ab.IgGMICROHIV 1 and 2 IgG antibody, BloodPrid

Frequently asked questions

Code details

Code77685-6
SystemLOINC
Display nameHIV 1 and 2 IgG IB Nom
DescriptionHIV 1 & 2 Ab.IgG
Short nameHIV 1 & 2 IgG SerPl IB
ComponentHIV 1 & 2 Ab.IgG
PropertyPrid
TimingPt
System (specimen)Ser/Plas
ScaleNom
MethodIB
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.58

Consumer names

HIV 1 and 2 IgG antibody, Blood

Part names

HIV 1 & 2 Ab.IgGPridPtSer/PlasNomIBHIV 1 and 2 IgGPresence or IdentityPoint in time (spot)Serum or PlasmaImmunoblot

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.