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LOINC Code 75138-8: Succinylaminoimidazole carboxamide riboside/Creatinine (U) [Molar ratio]

75138-8 is a LOINC code used to identify Succinylaminoimidazole carboxamide riboside/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 Succinylaminoimidazole carboxamide riboside/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 Succinylaminoimidazole carboxamide riboside/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

  • Succinylaminoimidazole carboxamide riboside/Creatinine [Molar ratio] in Urine
  • Succinylaminoimidazole carboxamide riboside/Creatinine
  • Chemistry; CR; Crea; Creat; Point in time; QNT; Quan; Quant; Quantitative; Random; SAICAR; Scrto; Substance concentration ratio; Substance 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

Succinylaminoimidazole carboxamide riboside/Creatinine (U) [Molar ratio]Succinylaminoimidazole carboxamide riboside/Creatinine [Molar ratio] in UrineSAICAR/Creat Ur-sRtoSuccinylaminoimidazole carboxamide riboside/CreatinineCHEMSuccinylaminoimidazole carboxamide riboside/Creatinine, UrineSRto

Frequently asked questions

Code details

Code75138-8
SystemLOINC
Display nameSuccinylaminoimidazole carboxamide riboside/Creatinine (U) [Molar ratio]
DescriptionSuccinylaminoimidazole carboxamide riboside/Creatinine
Short nameSAICAR/Creat Ur-sRto
ComponentSuccinylaminoimidazole carboxamide riboside/Creatinine
PropertySRto
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsnmol/mol creatinine
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.54

Consumer names

Succinylaminoimidazole carboxamide riboside/Creatinine, Urine

Part names

Succinylaminoimidazole carboxamide riboside/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.