LOINC Code 77759-9: 9-Hydroxyrisperidone cutoff Confirm (U) [Mass/Vol]

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 9-Hydroxyrisperidone 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

• 9-Hydroxyrisperidone cutoff [Mass/volume] in Urine for Confirmatory method
• 9-Hydroxyrisperidone cutoff
• The presence of 9-hydroxyrisperidone indicates recent risperidone or risperidone/9-hydroxyrisperidone use. Typical detection time in urine is up to 4 days.
• 9-Hydroxy risperidone; 9-Hydroxy-risperidone; 9-OH-Risperidone; 9OH-risperidone; Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; CtO; DRUG/TOXICOLOGY; Drugs; GCMS; Invega; LC/MS/MS; Level; Mass concentration; Paliperidone; Point in time; QNT; Quan; Quant; Quantitative; Random; Risperidone metabolite; UA; UR; Urn

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