LOINCActiveBoth

LOINC Code 73945-8: UR-144 (synthetic cannabinoid) Ql (Bld)

73945-8 is a LOINC code used to identify UR-144 (synthetic cannabinoid) Ql (Bld) 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 UR-144. It is commonly used with the system or sample type Bld.

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 UR-144. It is commonly used with the system or sample type Bld.

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

  • UR-144 (synthetic cannabinoid) [Presence] in Blood
  • UR-144
  • Submitter's referral laboratory uses what is usually considered a confirmatory method (e.g. LC/MS/MS) as the initial method for this analyte and then repeats the measurement with the same high accuracy method on tests that are positive in the first run to confirm them. Results (e.g. positive/negative) are based on a threshold of 1.0 ng/mL.
  • Addiction; Blood; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; Illicit; K2; Ordinal; Point in time; PotentialForAbuse; PR; QL; Qual; Qualitative; Random; Screen; Spice; Spike; Synthetic cannabinoid; Synthetic cannabinoids; WB; Whole blood; 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

UR-144 (synthetic cannabinoid) Ql (Bld)UR-144 (synthetic cannabinoid) [Presence] in BloodUR-144 Bld QlUR-144DRUG/TOXUR-144 (synthetic cannabinoid), BloodPrThr

Frequently asked questions

Code details

Code73945-8
SystemLOINC
Display nameUR-144 (synthetic cannabinoid) Ql (Bld)
DescriptionUR-144
Short nameUR-144 Bld Ql
ComponentUR-144
PropertyPrThr
TimingPt
System (specimen)Bld
ScaleOrd
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.73

Consumer names

UR-144 (synthetic cannabinoid), Blood

Part names

UR-144PrThrPtBldOrdUR-144 (synthetic cannabinoid)Presence or ThresholdPoint in time (spot)Blood

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 73945-8 | HealthAssure