HealthAssure
HealthAssureGood Life
LOINCActiveBoth

LOINC Code 79347-1: Sulfate.total/Creatinine (U) [Molar ratio]

79347-1 is a LOINC code used to identify Sulfate.total/Creatinine (U) [Molar ratio] 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 Sulfate.total/Creatinine. 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 Sulfate.total/Creatinine. 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

Sulfate.total/Creatinine [Molar ratio] in Urine
Sulfate.total/Creatinine
Sulfur enters the body mainly as the amino acids, cysteine, and methionine. Food also contains inorganic and organic sulfates. The major end-product of sulfur metabolism in humans is inorganic sulfate, which is excreted in urine in the free form together with small amounts of its esters with aromatic compounds. [PMID4566470] However these two forms do not account for all the sulfur present in urine, and quantification of urinary total sulfur together with inorganic sulfate and ester sulfate is required for the evaluation of sulfur metabolism in humans. Men excrete significantly higher amounts of inorganic sulfate and total sulfur than woman, but this sex-related difference becomes insignificant if excretion values are expressed relative to creatinine. The trace element sulfur is essential to human life. [PMID: 7389089] Sulfur is found in all cells. Skin and nail disease have been associated with an inadequate intake of sulfur containing amino acids. Psoriasis and rheumatic condition suffers often respond well to increased intakes of these amino acids.
CR; Crea; Creat; DRUG/TOXICOLOGY; Drugs; Point in time; QNT; Quan; Quant; Quantitative; Random; Scrto; SO4; SO4-2; Substance concentration ratio; Substance ratio; Sulf; T sulfate; Tot; Totl; UA; UCr; 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

Sulfate.total/Creatinine (U) [Molar ratio]Sulfate.total/Creatinine [Molar ratio] in UrineT sulfate/Creat Ur-sRtoSulfate.total/CreatinineDRUG/TOXSulfate.total/Creatinine, UrineSRto

Frequently asked questions

Code details

Code79347-1
SystemLOINC
Display nameSulfate.total/Creatinine (U) [Molar ratio]
DescriptionSulfate.total/Creatinine
Short nameT sulfate/Creat Ur-sRto
ComponentSulfate.total/Creatinine
PropertySRto
TimingPt
System (specimen)Urine
ScaleQn
ClassDRUG/TOX
Example unitsmmol/mol creatinine
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.54

Consumer names

Sulfate.total/Creatinine, Urine

Part names

Sulfate.total/CreatinineSRtoPtUrineQnSubstance RatioPoint 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 79347-1 | HealthAssure