LOINC

LOINC Code 22683-7: Phenylalanine/Creatinine (U) [Molar conc ratio]

22683-7 is a LOINC code used to identify Phenylalanine/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 Phenylalanine/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 Phenylalanine/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 Phenylalanine/Creatinine [Molecular ratio] in Urine
  • Phenylalanine/Creatinine
  • Chemistry; CR; Crea; Creat; Phe; Point in time; PPA; 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

Phenylalanine/Creatinine (U) [Molar conc ratio]Deprecated Phenylalanine/Creatinine [Molecular ratio] in UrineDeprecated Phe/creat Ur-sRtoPhenylalanine/CreatinineCHEMPhenylalanine/Creatinine, UrineSCrto

Frequently asked questions

Code details

Code22683-7
SystemLOINC
Display namePhenylalanine/Creatinine (U) [Molar conc ratio]
DescriptionPhenylalanine/Creatinine
Short nameDeprecated Phe/creat Ur-sRto
ComponentPhenylalanine/Creatinine
PropertySCrto
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsmmol/mol creatinine
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.70

Consumer names

Phenylalanine/Creatinine, Urine

Part names

Phenylalanine/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.

LOINC Code 22683-7 | HealthAssure