LOINCActiveBoth

LOINC Code 73346-9: HYDROcodone+Acetaminophen induced platelet IgM FC Ql

73346-9 is a LOINC code used to identify HYDROcodone+Acetaminophen 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 HYDROcodone+Acetaminophen 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 HYDROcodone+Acetaminophen 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

  • HYDROcodone+Acetaminophen induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)
  • HYDROcodone+Acetaminophen induced platelet Ab.IgM
  • ABS; Aby; ACET; Acetamidophenol; Acetaminoph; Acetominophen; Anexsia; Antby; Anti; Antibodies; Antibody; APAP; Autoantibodies; Autoantibody; c209; C55; Circulating platelet ab; Dihydrocodeinone; Dynamic; FC; HYDROcodone+APAP; Hydrocodone+paracetamol; Hydroxyacetanilide; Immune globulin M; Immunoglobulin M; ind plt Ab; ind plt IgM; N-(4-Hydroxyphenyl)acetanilide; N-Acetyl-p-aminophenol; Ordinal; p-Acetamidophenol; Paracetamol; p-Hydroxyacetanilide; 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; Tussionex; Tylenol; u209; Vicodin

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

HYDROcodone+Acetaminophen induced platelet IgM FC QlHYDROcodone+Acetaminophen induced platelet IgM Ab [Presence] in Serum or Plasma by Flow cytometry (FC)HYDROcodone+APAP ind plt IgM SerPl Ql FCHYDROcodone+Acetaminophen induced platelet Ab.IgMSEROHYDROcodone+Acetaminophen induced platelet IgM, BloodPrThr

Frequently asked questions

Code details

Code73346-9
SystemLOINC
Display nameHYDROcodone+Acetaminophen induced platelet IgM FC Ql
DescriptionHYDROcodone+Acetaminophen induced platelet Ab.IgM
Short nameHYDROcodone+APAP ind plt IgM SerPl Ql FC
ComponentHYDROcodone+Acetaminophen 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

HYDROcodone+Acetaminophen induced platelet IgM, Blood

Part names

HYDROcodone+Acetaminophen induced platelet Ab.IgMPrThrPtSer/PlasOrdFlow cytometryHYDROcodone+Acetaminophen 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.

LOINC Code 73346-9 | HealthAssure