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LOINC Code 59648-6: N-desalkylflurazepam (Body fld) [Mass/Vol]

59648-6 is a LOINC code used to identify N-desalkylflurazepam (Body fld) [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 N-desalkylflurazepam. It is commonly used with the system or sample type Body fld.

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 N-desalkylflurazepam. It is commonly used with the system or sample type Body fld.

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

  • N-desalkylflurazepam [Mass/volume] in Body fluid
  • N-desalkylflurazepam
  • B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Desalkyfluraz; Desalkylfluraz; Desalkylflurazepam; DRUG/TOXICOLOGY; Drugs; Fl; Fld; FLU; Fluid; Flurazepam metabolite; Level; Mass concentration; norfludiazepam; Point in time; QNT; Quan; Quant; Quantitative; Random

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

N-desalkylflurazepam (Body fld) [Mass/Vol]N-desalkylflurazepam [Mass/volume] in Body fluidDesalkylfluraz Fld-mCncN-desalkylflurazepamDRUG/TOXN-desalkylflurazepam, Body fluidMCnc

Frequently asked questions

Code details

Code59648-6
SystemLOINC
Display nameN-desalkylflurazepam (Body fld) [Mass/Vol]
DescriptionN-desalkylflurazepam
Short nameDesalkylfluraz Fld-mCnc
ComponentN-desalkylflurazepam
PropertyMCnc
TimingPt
System (specimen)Body fld
ScaleQn
ClassDRUG/TOX
Example unitsng/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.70

Consumer names

N-desalkylflurazepam, Body fluid

Part names

N-desalkylflurazepamMCncPtBody fldQnMass ConcentrationPoint in time (spot)Body fluid

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.