LOINCActiveBoth

LOINC Code 5688-7: Mercury Visual.Reinsch Ql (U)

5688-7 is a LOINC code used to identify Mercury Visual.Reinsch Ql (U) 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 Mercury. It is commonly used with the system or sample type Urine.

Reviewed by HealthAssure Clinical TeamUpdated 21 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 Mercury. 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
  • Method: Visual.Reinsch

What it does not mean

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

Key facts

  • Mercury [Presence] in Urine by Visual.Reinsch
  • Mercury
  • DRUG/TOXICOLOGY; Drugs; HG; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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

Mercury Visual.Reinsch Ql (U)Mercury [Presence] in Urine by Visual.ReinschMercury Ur Ql Visual.ReinschMercuryDRUG/TOXMercury, UrinePrThr

Frequently asked questions

Code details

Code5688-7
SystemLOINC
Display nameMercury Visual.Reinsch Ql (U)
DescriptionMercury
Short nameMercury Ur Ql Visual.Reinsch
ComponentMercury
PropertyPrThr
TimingPt
System (specimen)Urine
ScaleOrd
MethodVisual.Reinsch
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.56

Consumer names

Mercury, Urine

Part names

MercuryPrThrPtUrineOrdVisual.ReinschPresence 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 5688-7 | HealthAssure