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.

LOINCObservation

LOINC Code 5903-0: Coagulation dRVVT (PPP control) [Time]

Name: LOINC Code 5903-0: Coagulation dRVVT (PPP control) [Time]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:39.276Z

5903-0 is a LOINC code used to identify Coagulation dRVVT (PPP control) [Time] 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 Coagulation Russell viper venom induced. It is commonly used with the system or sample type PPP^Control.

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 Coagulation Russell viper venom induced. It is commonly used with the system or sample type PPP^Control.

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
Order vs observation: Observation
Method: Coag

What it does not mean

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

Key facts

Deprecated Russell viper venom time in Platelet poor plasma from Control by Coagulation assay
Coagulation Russell viper venom induced
Clot; Clottable; Coag; Coagulation assay; Contrl; Hematology; Heme; Normal; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; Rus; Russell viper venom time; RVV; RVV time; Stypven time; Tilt tube

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

Coagulation dRVVT (PPP control) [Time]Deprecated Russell viper venom time in Platelet poor plasma from Control by Coagulation assayDeprecated RVV time PPP ContCoagulation Russell viper venom inducedCOAGCoagulation, control BloodTime

Frequently asked questions

Code details

Code5903-0

SystemLOINC

Display nameCoagulation dRVVT (PPP control) [Time]

DescriptionCoagulation Russell viper venom induced

Short nameDeprecated RVV time PPP Cont

ComponentCoagulation Russell viper venom induced

PropertyTime

TimingPt

System (specimen)PPP^Control

ScaleQn

MethodCoag

ClassCOAG

Example unitss

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.82

Consumer names

Coagulation, control Blood

Part names

Coagulation Russell viper venom inducedTimePtPPP^controlQnCoagRussell viper venom timeTime (e.g. seconds)Point in time (spot)Platelet poor plasma^ControlCoagulation assay

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.