What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 35646-9: Deoxypyridinoline/Creatinine Unsp time (U) [Molar ratio]

Name: LOINC Code 35646-9: Deoxypyridinoline/Creatinine Unsp time (U) [Molar ratio]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:23.498Z

35646-9 is a LOINC code used to identify Deoxypyridinoline/Creatinine Unsp time (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 Deoxypyridinoline/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 Deoxypyridinoline/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

Deoxypyridinoline/Creatinine [Molar ratio] in Urine collected for unspecified duration
Deoxypyridinoline/Creatinine
?Tm; Chemistry; CR; Crea; Creat; DPD; Dpyr; Free lysly-pyridinoline; Lysylpyridinoline; Pyradinium collagen crosslinks; QNT; Quan; Quant; Quantitative; 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

Deoxypyridinoline/Creatinine Unsp time (U) [Molar ratio]Deoxypyridinoline/Creatinine [Molar ratio] in Urine collected for unspecified durationDPD/Creat ?Tm Ur-sRtoDeoxypyridinoline/CreatinineCHEMDeoxypyridinoline/Creatinine, UrineSRto

Frequently asked questions

Code details

Code35646-9

SystemLOINC

Display nameDeoxypyridinoline/Creatinine Unsp time (U) [Molar ratio]

DescriptionDeoxypyridinoline/Creatinine

Short nameDPD/Creat ?Tm Ur-sRto

ComponentDeoxypyridinoline/Creatinine

PropertySRto

TimingXXX

System (specimen)Urine

ScaleQn

ClassCHEM

Example unitsmmol/mol creatinine

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.13

Last changed2.52

Consumer names

Deoxypyridinoline/Creatinine, Urine

Part names

Deoxypyridinoline/CreatinineSRtoXXXUrineQnSubstance RatioUnspecified

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.