LOINCActiveBoth

LOINC Code 3594-9: ePHEDrine+Pseudoephedrine Ql

3594-9 is a LOINC code used to identify ePHEDrine+Pseudoephedrine 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 Ephedrine+Pseudoephedrine. 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 Ephedrine+Pseudoephedrine. 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

What it does not mean

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

Key facts

  • ePHEDrine+Pseudoephedrine [Presence] in Serum or Plasma
  • Ephedrine+Pseudoephedrine
  • Cenafed; DRUG/TOXICOLOGY; Drugs; Ectasule; Ephedrin+Pseudo; Ordinal; Pl; Plasma; Plsm; Point in time; PR; Pseudoephed; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Sudafed

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

ePHEDrine+Pseudoephedrine QlePHEDrine+Pseudoephedrine [Presence] in Serum or PlasmaEphedrin+Pseudo SerPl QlEphedrine+PseudoephedrineDRUG/TOXePHEDrine+Pseudoephedrine, BloodPrThr

Frequently asked questions

Code details

Code3594-9
SystemLOINC
Display nameePHEDrine+Pseudoephedrine Ql
DescriptionEphedrine+Pseudoephedrine
Short nameEphedrin+Pseudo SerPl Ql
ComponentEphedrine+Pseudoephedrine
PropertyPrThr
TimingPt
System (specimen)Ser/Plas
ScaleOrd
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.56

Consumer names

ePHEDrine+Pseudoephedrine, Blood

Part names

ePHEDrine+PseudoephedrinePrThrPtSer/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 3594-9 | HealthAssure