LOINCActiveBoth

LOINC Code 79311-7: Gamma butyrobetaine/Creatinine (U) [Molar ratio]

79311-7 is a LOINC code used to identify Gamma butyrobetaine/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 Gamma butyrobetaine/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 Gamma butyrobetaine/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

  • Gamma butyrobetaine/Creatinine [Molar ratio] in Urine
  • Gamma butyrobetaine/Creatinine
  • Chemistry; CR; Crea; Creat; G-butyrobetaine; Point in time; QNT; Quan; Quant; Quantitative; Random; Scrto; Substance concentration ratio; Substance ratio; TMLHE; Trimethyllysine hydroxylase epsilon deficiency; 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

Gamma butyrobetaine/Creatinine (U) [Molar ratio]Gamma butyrobetaine/Creatinine [Molar ratio] in UrineG-butyrobetaine/Creat Ur-sRtoGamma butyrobetaine/CreatinineCHEMGamma butyrobetaine/Creatinine, UrineSRto

Frequently asked questions

Code details

Code79311-7
SystemLOINC
Display nameGamma butyrobetaine/Creatinine (U) [Molar ratio]
DescriptionGamma butyrobetaine/Creatinine
Short nameG-butyrobetaine/Creat Ur-sRto
ComponentGamma butyrobetaine/Creatinine
PropertySRto
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsumol/mmol creatinine
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Gamma butyrobetaine/Creatinine, Urine

Part names

Gamma butyrobetaine/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.