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LOINC Code 73412-9: Diphenoxylate and Atropine (Lomatil) induced platelet IgM FC Ql

73412-9 is a LOINC code used to identify Diphenoxylate and Atropine (Lomatil) induced platelet IgM 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 Diphenoxylate+Atropine induced platelet Ab.IgM. 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 Diphenoxylate+Atropine induced platelet Ab.IgM. 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

  • Diphenoxylate and Atropine (Lomatil) induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
  • Diphenoxylate+Atropine induced platelet Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Circulating platelet ab; Co-phenotrope; Diphenox+Atropine; Dynamic; Enlon; FC; Immune globulin M; Immunoglobulin M; ind plt Ab; ind plt IgM; Lomotil; 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

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

Diphenoxylate and Atropine (Lomatil) induced platelet IgM FC QlDiphenoxylate and Atropine (Lomatil) induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)Diphenox+Atropine ind plt IgM SP Ql FCDiphenoxylate+Atropine induced platelet Ab.IgMSERODiphenoxylate and Atropine (Lomatil) induced platelet IgM, BloodPrThr

Frequently asked questions

Code details

Code73412-9
SystemLOINC
Display nameDiphenoxylate and Atropine (Lomatil) induced platelet IgM FC Ql
DescriptionDiphenoxylate+Atropine induced platelet Ab.IgM
Short nameDiphenox+Atropine ind plt IgM SP Ql FC
ComponentDiphenoxylate+Atropine induced platelet Ab.IgM
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

Diphenoxylate and Atropine (Lomatil) induced platelet IgM, Blood

Part names

Diphenoxylate+Atropine induced platelet Ab.IgMPrThrPtSer/PlasOrdFlow cytometryDiphenoxylate+Atropine induced platelet IgMPresence 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.