LOINC

LOINC Code 26579-3: Beta aminoisobutyrate/Creatinine (U) [Molar conc ratio]

26579-3 is a LOINC code used to identify Beta aminoisobutyrate/Creatinine (U) [Molar conc 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 Beta aminoisobutyrate/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 Beta aminoisobutyrate/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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Beta aminoisobutyrate/Creatinine [Molecular ratio] in Urine
  • Beta aminoisobutyrate/Creatinine
  • 3-aminoisobutyrate; 3-aminoisobutyric acid; B; B-AIB; Chemistry; CR; Crea; Creat; Point in time; QNT; Quan; Quant; Quantitative; Random; Substance concentration ratio; 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

Beta aminoisobutyrate/Creatinine (U) [Molar conc ratio]Deprecated Beta aminoisobutyrate/Creatinine [Molecular ratio] in UrineDeprecated B-AIB/creat Ur-sRtoBeta aminoisobutyrate/CreatinineCHEMBeta aminoisobutyrate/Creatinine, UrineSCrto

Frequently asked questions

Code details

Code26579-3
SystemLOINC
Display nameBeta aminoisobutyrate/Creatinine (U) [Molar conc ratio]
DescriptionBeta aminoisobutyrate/Creatinine
Short nameDeprecated B-AIB/creat Ur-sRto
ComponentBeta aminoisobutyrate/Creatinine
PropertySCrto
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsmmol/mol creatinine
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.70

Consumer names

Beta aminoisobutyrate/Creatinine, Urine

Part names

Beta aminoisobutyrate/CreatinineSCrtoPtUrineQnPoint 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.