LOINCActiveObservation

LOINC Code 78881-0: RCS-4 5-hydroxypentyl cutoff Confirm (U) [Mass/Vol]

78881-0 is a LOINC code used to identify RCS-4 5-hydroxypentyl 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 RCS-4 5-hydroxypentyl 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 RCS-4 5-hydroxypentyl 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

  • RCS-4 5-hydroxypentyl (synthetic cannabinoid metabolite) cutoff [Mass/volume] in Urine for Confirmatory method
  • RCS-4 5-hydroxypentyl cutoff
  • Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; CtO; DRUG/TOXICOLOGY; Drugs; GCMS; K2; LC/MS/MS; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; RCS-4 5OH-pentyl; RCS-4 N-(5-hydroxypentyl) metabolite; Spice; Spike; Synthetic cannabinoid; Synthetic cannabinoids; UA; UR; Urn; Yucatan Fire

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

RCS-4 5-hydroxypentyl cutoff Confirm (U) [Mass/Vol]RCS-4 5-hydroxypentyl (synthetic cannabinoid metabolite) cutoff [Mass/volume] in Urine for Confirmatory methodRCS-4 5OH-pentyl CtO Ur Cfm-mCncRCS-4 5-hydroxypentyl cutoffDRUG/TOXRCS-4 5-hydroxypentyl cutoff, UrineMCnc

Frequently asked questions

Code details

Code78881-0
SystemLOINC
Display nameRCS-4 5-hydroxypentyl cutoff Confirm (U) [Mass/Vol]
DescriptionRCS-4 5-hydroxypentyl cutoff
Short nameRCS-4 5OH-pentyl CtO Ur Cfm-mCnc
ComponentRCS-4 5-hydroxypentyl 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 released2.54
Last changed2.54

Consumer names

RCS-4 5-hydroxypentyl cutoff, Urine

Part names

RCS-4 5-hydroxypentyl 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.

LOINC Code 78881-0 | HealthAssure