LOINCActiveBoth

LOINC Code 73538-1: Allopurinol induced platelet IgG FC Ql

73538-1 is a LOINC code used to identify Allopurinol induced platelet IgG FC 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 Allopurinol induced platelet 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 Allopurinol induced platelet 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: Flow cytometry

What it does not mean

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

Key facts

  • Allopurinol induced platelet IgG Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
  • Allopurinol induced platelet Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Circulating platelet ab; Dynamic; FC; Immune globulin G; Immunoglobulin G; ind plt Ab; ind plt IgG; Lopurin; Ordinal; Pl; Plasma; Platelet ab.free; Platelet auto-antibodies; Platelets; Platelt; Plsm; Plt; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Thrombocyte; Thrombocytes; Zyloprim

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

Allopurinol induced platelet IgG FC QlAllopurinol induced platelet IgG Ab [Presence] in Serum or Plasma by Flow cytometry (FC)Allopurinol ind plt IgG SerPl Ql FCAllopurinol induced platelet Ab.IgGSEROAllopurinol induced platelet IgG, BloodPrThr

Frequently asked questions

Code details

Code73538-1
SystemLOINC
Display nameAllopurinol induced platelet IgG FC Ql
DescriptionAllopurinol induced platelet Ab.IgG
Short nameAllopurinol ind plt IgG SerPl Ql FC
ComponentAllopurinol induced platelet Ab.IgG
PropertyPrThr
TimingPt
System (specimen)Ser/Plas
ScaleOrd
MethodFlow cytometry
ClassSERO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.66

Consumer names

Allopurinol induced platelet IgG, Blood

Part names

Allopurinol induced platelet Ab.IgGPrThrPtSer/PlasOrdFlow cytometryAllopurinol induced platelet IgGPresence or ThresholdPoint in time (spot)Serum or PlasmaFlow cytometry (FC)

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.