LOINC Code 78751-5: 11-Hydroxy delta-9 tetrahydrocannabinol (Hair) [Mass/Mass]

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 11-Hydroxy delta-9 tetrahydrocannabinol. 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

• 11-Hydroxy delta-9 tetrahydrocannabinol [Mass/mass] in Hair
• 11-Hydroxy delta-9 tetrahydrocannabinol
• Hair analysis provides a longer surveillance window for drug use than other methods because hair retains drugs longer (weeks or months, compared with days detectable in blood or urine). Collecting hair specimens also is less invasive than urine or blood sampling. Drawbacks for hair analysis include expense, and environmental contamination of the specimen.
• 11-hydroxy-delta(9)-THC; 11-hydroxytetrahydrocannabinol; 11-hydroxy-THC; 11-OH-THC; 11OH-THC; 7-hydroxy-delta(1)-tetrahydrocannabinol; Delta(9)-THC; Delta-9-tetrahydrocannabinol; Delta-9-tetrahydrocannabinol metabolite; Dronabinol; DRUG/TOXICOLOGY; Drugs; Har; Hydrox; Marijuana; Mass content; Nabilone; OH; Point in time; QNT; Quan; Quant; Quantitative; Random; THC; THC metabolite

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

Frequently asked questions