LOINCActiveBoth

LOINC Code 3636-8: fentaNYL [Mass/Vol]

3636-8 is a LOINC code used to identify fentaNYL [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 fentaNYL. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 fentaNYL. 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

  • fentaNYL [Mass/volume] in Serum or Plasma
  • fentaNYL
  • Actiq; Addiction; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; Duragesic; Durogesic; Fenpat; fentanil; Illicit; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; PotentialForAbuse; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Sublimaze

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

fentaNYL [Mass/Vol]fentaNYL [Mass/volume] in Serum or PlasmafentaNYL SerPl-mCncfentaNYLDRUG/TOXfentaNYL, BloodMCnc

Frequently asked questions

Code details

Code3636-8
SystemLOINC
Display namefentaNYL [Mass/Vol]
DescriptionfentaNYL
Short namefentaNYL SerPl-mCnc
ComponentfentaNYL
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassDRUG/TOX
Example unitsmcg/mL; ng/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

fentaNYL, Blood

Part names

fentaNYLMCncPtSer/PlasQnMass ConcentrationPoint 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 3636-8 | HealthAssure