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 6301-6: Coagulation INR (PPP) [Relative time]

Name: LOINC Code 6301-6: Coagulation INR (PPP) [Relative time]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:42.801Z

6301-6 is a LOINC code used to identify Coagulation INR (PPP) [Relative 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. It is commonly used with the system or sample type PPP.

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. It is commonly used with the system or sample type PPP.

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
Method: Coag.tissue factor induced.INR

What it does not mean

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

Key facts

INR in Platelet poor plasma by Coagulation assay
Coagulation
Clot; Clottable; Coag; Coagulation assay; Fac; Fact; Hematology; Heme; Internat norm ratio; International normal ratio; International normalization ratio; International normalized ratio; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; RlTm; 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 INR (PPP) [Relative time]INR in Platelet poor plasma by Coagulation assayINR PPPCoagulationCOAGCoagulation, BloodRelTime

Frequently asked questions

Code details

Code6301-6

SystemLOINC

Display nameCoagulation INR (PPP) [Relative time]

DescriptionCoagulation

Short nameINR PPP

ComponentCoagulation

PropertyRelTime

TimingPt

System (specimen)PPP

ScaleQn

MethodCoag.tissue factor induced.INR

ClassCOAG

Example unitsINR

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0f

Last changed2.82

Consumer names

Coagulation, Blood

Part names

CoagulationRelTimePtPPPQnCoag.tissue factor induced.INRRelative timePoint in time (spot)Platelet poor plasmaINR

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.