LOINCActiveBoth

LOINC Code 47439-5: H. influenzae B IgG spec 1 (S) [Mass/Vol]

47439-5 is a LOINC code used to identify H. influenzae B IgG spec 1 (S) [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 Haemophilus influenzae B Ab.IgG^1st specimen. It is commonly used with the system or sample type Ser.

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 Haemophilus influenzae B Ab.IgG^1st specimen. It is commonly used with the system or sample type Ser.

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

  • Haemophilus influenzae B IgG Ab [Mass/volume] in Serum --1st specimen
  • Haemophilus influenzae B Ab.IgG^1st specimen
  • ABS; Aby; Acute specimen; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; First; H flu; H influenza; H influenzae; Haem influ; Haem influ B; Haemoph; HIB; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Influ; Level; Mass concentration; Microbiology; Point in time; Pre immunization; QNT; Quan; Quant; Quantitative; Random; Serum; sp1; Spec; 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

H. influenzae B IgG spec 1 (S) [Mass/Vol]Haemophilus influenzae B IgG Ab [Mass/volume] in Serum --1st specimenHaem influ B IgG sp1 Ser-mCncHaemophilus influenzae B Ab.IgG^1st specimenMICROHaemophilus influenzae B IgG antibody specimen 1, BloodMCnc

Frequently asked questions

Code details

Code47439-5
SystemLOINC
Display nameH. influenzae B IgG spec 1 (S) [Mass/Vol]
DescriptionHaemophilus influenzae B Ab.IgG^1st specimen
Short nameHaem influ B IgG sp1 Ser-mCnc
ComponentHaemophilus influenzae B Ab.IgG^1st specimen
PropertyMCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassMICRO
Example unitsug/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.40

Consumer names

Haemophilus influenzae B IgG antibody specimen 1, Blood

Part names

Haemophilus influenzae B Ab.IgG^1st specimenMCncPtSerQnMass ConcentrationPoint in time (spot)Serum

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.