LOINCActiveObservation

LOINC Code 28602-1: Beta aminoisobutyrate/Creatinine (U) [Ratio]

28602-1 is a LOINC code used to identify Beta aminoisobutyrate/Creatinine (U) [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 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 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Beta aminoisobutyrate/Creatinine [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; Ratios; Rto; 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) [Ratio]Beta aminoisobutyrate/Creatinine [Ratio] in UrineB-AIB/Creat Ur-RtoBeta aminoisobutyrate/CreatinineCHEMBeta aminoisobutyrate/Creatinine, UrineRatio

Frequently asked questions

Code details

Code28602-1
SystemLOINC
Display nameBeta aminoisobutyrate/Creatinine (U) [Ratio]
DescriptionBeta aminoisobutyrate/Creatinine
Short nameB-AIB/Creat Ur-Rto
ComponentBeta aminoisobutyrate/Creatinine
PropertyRatio
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsumol/g creatinine
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.73

Consumer names

Beta aminoisobutyrate/Creatinine, Urine

Part names

Beta aminoisobutyrate/CreatinineRatioPtUrineQnPoint 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 28602-1 | HealthAssure