LOINCActiveObservation

LOINC Code 51651-8: IgE Ab Ql

51651-8 is a LOINC code used to identify IgE Ab Ql 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 IgE Ab. It is commonly used with the system or sample type Ser/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 IgE Ab. 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

What it does not mean

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

Key facts

  • IgE Ab [Presence] in Serum or Plasma
  • IgE Ab
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Chemistry; Immune globulin E; Immunoglobulin E; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

IgE Ab QlIgE Ab [Presence] in Serum or PlasmaIgE Ab SerPl QlIgE AbCHEMIgE antibody, BloodPrThr

Frequently asked questions

Code details

Code51651-8
SystemLOINC
Display nameIgE Ab Ql
DescriptionIgE Ab
Short nameIgE Ab SerPl Ql
ComponentIgE Ab
PropertyPrThr
TimingPt
System (specimen)Ser/Plas
ScaleOrd
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.73

Consumer names

IgE antibody, Blood

Part names

IgE AbPrThrPtSer/PlasOrdPresence or ThresholdPoint 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 51651-8 | HealthAssure