LOINCActiveBoth

LOINC Code 73729-6: Meperidine Ql (Hair)

73729-6 is a LOINC code used to identify Meperidine Ql (Hair) 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 Meperidine. It is commonly used with the system or sample type Hair.

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 Meperidine. It is commonly used with the system or sample type Hair.

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

  • Meperidine [Presence] in Hair
  • Meperidine
  • Testing for the presence of meperidine in hair is performed to detect drug abuse.
  • Addiction; Algil; Alodan; Centralgine; Demerol; Dispadol; Dolantin; Dolosal; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; Har; Illicit; Ordinal; Pethidine; Point in time; PotentialForAbuse; PR; QL; Qual; Qualitative; Random; Screen

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

Meperidine Ql (Hair)Meperidine [Presence] in HairMeperidine Hair QlMeperidineDRUG/TOXMeperidine, HairPrThr

Frequently asked questions

Code details

Code73729-6
SystemLOINC
Display nameMeperidine Ql (Hair)
DescriptionMeperidine
Short nameMeperidine Hair Ql
ComponentMeperidine
PropertyPrThr
TimingPt
System (specimen)Hair
ScaleOrd
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.44
Last changed2.56

Consumer names

Meperidine, Hair

Part names

MeperidinePrThrPtHairOrdPresence or ThresholdPoint 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 73729-6 | HealthAssure