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.

LOINCActiveOrder

LOINC Code 34529-8: PT and aPTT panel Coag (PPP)

Name: LOINC Code 34529-8: PT and aPTT panel Coag (PPP)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:22.384Z

34529-8 is a LOINC code used to identify PT and aPTT panel Coag (PPP) 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 PT & aPTT panel. 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 PT & aPTT panel. 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: Order
Panel type: Panel
Method: Coag

What it does not mean

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

Key facts

PT and aPTT panel - Platelet poor plasma by Coagulation assay
PT & aPTT panel
aPTT Pnl; Clot; Clottable; COAGULATION; Coagulation assay; Pan; PANEL.COAGULATION; Panl; Plas; Platelet poor plasma; Pnl; Point in time; PT + aPTT Pnl; QNT; Quan; Quant; Quantitative; Random; 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

PT and aPTT panel Coag (PPP)PT and aPTT panel - Platelet poor plasma by Coagulation assayPT + aPTT Pnl PPPPT & aPTT panelPANEL.COAGPT and APTT Panel, Blood-

Frequently asked questions

Code details

Code34529-8

SystemLOINC

Display namePT and aPTT panel Coag (PPP)

DescriptionPT & aPTT panel

Short namePT + aPTT Pnl PPP

ComponentPT & aPTT panel

Property-

TimingPt

System (specimen)PPP

ScaleQn

MethodCoag

ClassPANEL.COAG

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.10

Last changed2.73

Consumer names

PT and APTT Panel, Blood

Part names

PT & aPTT panel-PtPPPQnCoagPT and aPTT panelPoint in time (spot)Platelet poor plasmaCoagulation 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.