LOINCActiveObservation

LOINC Code 77754-0: 2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff Confirm (U) [Mass/Vol]

77754-0 is a LOINC code used to identify 2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff Confirm (U) [Mass/Vol] 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 2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoff. It is commonly used with the system or sample type Urine.

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 2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoff. It is commonly used with the system or sample type Urine.

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
  • Method: Confirm

What it does not mean

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

Key facts

  • 2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff [Mass/volume] in Urine for Confirmatory method
  • 2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoff
  • Confirmation of EDDP, a methadone metabolite, is evidence of taking a methadone medication. Detection time for this drug is approximately up to 14 days.
  • Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; CtO; DRUG/TOXICOLOGY; Drugs; EDDP; GCMS; i; II; III; LC/MS/MS; Level; Mass concentration; Methadone metabolite; Methadone.long acting metabolite; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; UR; Urn

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

2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff Confirm (U) [Mass/Vol]2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff [Mass/volume] in Urine for Confirmatory methodEDDP CtO Ur Cfm-mCnc2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoffDRUG/TOX2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff, UrineMCnc

Frequently asked questions

Code details

Code77754-0
SystemLOINC
Display name2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff Confirm (U) [Mass/Vol]
Description2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoff
Short nameEDDP CtO Ur Cfm-mCnc
Component2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoff
PropertyMCnc
TimingPt
System (specimen)Urine
ScaleQn
MethodConfirm
ClassDRUG/TOX
Example unitsng/mL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.52
Last changed2.52

Consumer names

2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine (EDDP) cutoff, Urine

Part names

2-Ethylidene-1,5-Dimethyl-3,3-Diphenylpyrrolidine cutoffMCncPtUrineQnConfirmMass ConcentrationPoint in time (spot)

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.