LOINCActiveBoth

LOINC Code 5651-5: Fluoride (24H U) [Mass/Time]

5651-5 is a LOINC code used to identify Fluoride (24H U) [Mass/Time] 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 Fluoride. It is commonly used with the system or sample type Urine.

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 Fluoride. 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: Both

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Fluoride [Mass/time] in 24 hour Urine
  • Fluoride
  • 1 day; 24 hours; 24HR; DRUG/TOXICOLOGY; Drugs; Fl; Mass rate; mRate; QNT; Quan; Quant; Quantitative; 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

Fluoride (24H U) [Mass/Time]Fluoride [Mass/time] in 24 hour UrineFluoride 24h Ur-mRateFluorideDRUG/TOXFluoride, UrineMRat

Frequently asked questions

Code details

Code5651-5
SystemLOINC
Display nameFluoride (24H U) [Mass/Time]
DescriptionFluoride
Short nameFluoride 24h Ur-mRate
ComponentFluoride
PropertyMRat
Timing24H
System (specimen)Urine
ScaleQn
ClassDRUG/TOX
Example unitsmg/24 H
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.42

Consumer names

Fluoride, Urine

Part names

FluorideMRat24HUrineQnMass Rate24 hours

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 5651-5 | HealthAssure