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.

LOINCActiveObservation

LOINC Code 58954-9: Deoxypyridinoline/Pyridinoline (U) [Molar ratio]

Name: LOINC Code 58954-9: Deoxypyridinoline/Pyridinoline (U) [Molar ratio]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

58954-9 is a LOINC code used to identify Deoxypyridinoline/Pyridinoline (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/Pyridinoline. 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 Deoxypyridinoline/Pyridinoline. 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

Deoxypyridinoline/Pyridinoline [Molar ratio] in Urine
Deoxypyridinoline/Pyridinoline
Chemistry; DPD; Dpyr; Free lysly-pyridinoline; Lysylpyridinoline; Point in time; PYD; Pyr; Pyradinium collagen crosslinks; Pyridinium collagen crosslinks; QNT; Quan; Quant; Quantitative; Random; Scrto; Substance concentration ratio; Substance ratio; UA; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Deoxypyridinoline/Pyridinoline (U) [Molar ratio] (58954-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Deoxypyridinoline/Pyridinoline (U) [Molar ratio]Deoxypyridinoline/Pyridinoline [Molar ratio] in UrineDPD/PYD Ur-sRtoDeoxypyridinoline/PyridinolineCHEMDeoxypyridinoline/Pyridinoline, UrineSRto

Frequently asked questions

Code details

Code58954-9

SystemLOINC

Display nameDeoxypyridinoline/Pyridinoline (U) [Molar ratio]

DescriptionDeoxypyridinoline/Pyridinoline

Short nameDPD/PYD Ur-sRto

ComponentDeoxypyridinoline/Pyridinoline

PropertySRto

TimingPt

System (specimen)Urine

ScaleQn

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.32

Last changed2.73

Consumer names

Deoxypyridinoline/Pyridinoline, Urine

Part names

Deoxypyridinoline/PyridinolineSRtoPtUrineQnSubstance 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.