How to Read an Edexcel Paper Code: 4PH1, WPH11, 4MA1 and More

If you've ever searched for an Edexcel past paper, you've probably seen codes like:

4PH1/1P

4MA1/2H

WPH11/01

WBI11/01

At first, these codes can look like random combinations of letters and numbers.

They're not.

Edexcel uses these codes to identify qualifications, subjects, units and individual examination papers. Once you understand the basic structure, finding the correct Edexcel past paper becomes much easier.

In this guide, we'll break down some of the most common Edexcel IGCSE and International A Level paper codes, including 4PH1, 4MA1 and WPH11.

Quick answer: The first part of an Edexcel code usually identifies the qualification, subject or unit, while the part after the slash identifies a particular paper or paper version. However, the exact structure depends on the qualification.

What Is an Edexcel Paper Code?

An Edexcel paper code is an identification code used by Pearson Edexcel to distinguish qualifications, units and examination papers.

For example:

4MA1 identifies Pearson Edexcel International GCSE Mathematics A.

A particular paper might then be identified as:

4MA1/1H

The first part, 4MA1, identifies the qualification, while 1H identifies the particular paper.

So when you're searching for a past paper, knowing the code can save you from opening dozens of unrelated PDFs.

The Basic Structure of an Edexcel Code

Let's start with a simple example:

4MA1 / 1H

You can think of it as:

  • 4MA1 → qualification/subject code

  • 1H → specific paper

The exact structure differs between qualifications, so don't assume that every Edexcel code can be decoded in exactly the same way.

Here are some examples:

CodeWhat it relates to
4MA1International GCSE Mathematics A
4PH1International GCSE Physics
4BI1International GCSE Biology
4CH1International GCSE Chemistry
WPH11International A Level Physics Unit 1
WBI11International A Level Biology Unit 1
WCH11International A Level Chemistry Unit 1
WMA11International A Level Mathematics Unit 1

What Does 4PH1 Mean?

Let's take Physics as an example.

4PH1

4PH1 is the code associated with Pearson Edexcel International GCSE Physics.

When you see:

4PH1

you're generally looking at the International GCSE Physics qualification identifier.

But a complete paper reference can contain additional information.

For example:

4PH1/1P

This identifies Paper 1P for the International GCSE Physics qualification.

So if you're searching for an Edexcel IGCSE Physics past paper and you see:

4PH1/1P

you know you're dealing with a specific Physics examination paper.

What Does 4MA1 Mean?

4MA1 is the code for Pearson Edexcel International GCSE Mathematics A.

You may see past papers such as:

  • 4MA1/1F

  • 4MA1/1H

  • 4MA1/2F

  • 4MA1/2H

The letters F and H distinguish the Foundation and Higher papers.

For example:

4MA1/1F

means Mathematics A, Paper 1, Foundation.

4MA1/1H

means Mathematics A, Paper 1, Higher.

This is one of the most useful examples to remember if you're preparing for Edexcel IGCSE Mathematics A.

What Does WPH11 Mean?

This is where things can become confusing.

WPH11 belongs to the Pearson Edexcel International A Level Physics qualification rather than International GCSE Physics.

For example, you may see:

  • WPH11/01 — Unit 1

  • WPH12/01 — Unit 2

  • WPH13/01 — Unit 3

  • WPH14/01 — Unit 4

  • WPH15/01 — Unit 5

  • WPH16/01 — Unit 6

This is why students often search for things such as:

WPH11 past papers

or:

WPH11 mark scheme

rather than searching for the full qualification name.

Why Does WPH11 Have a W?

This is one of the common questions students have when they first encounter International A Level paper codes.

You don't need to memorise what every individual letter means.

Instead, treat the complete code as an identifier.

For example:

WPH11

is an International A Level Physics unit code.

The important thing for a student is that the code helps you identify the correct collection of papers.

What Does the Number at the End Mean?

Consider:

WPH11/01

There are two important sections:

WPH11

and:

01

The first part identifies the unit, while the complete paper reference identifies the particular examination paper.

You'll encounter different numbers or letters in Edexcel paper references depending on the qualification.

This is why you should always check the full paper reference, rather than relying on only the first few characters.

What Are the Other Numbers Printed on the PDF?

You might notice that an Edexcel examination paper contains several different-looking codes.

For example, you could see:

WPH11/01

and somewhere else:

P71864A

Don't confuse these.

The first is the paper reference used to identify the examination.

The other number can be an internal Pearson document or printing identifier that appears on the examination paper.

When you're looking for a past paper online, the paper reference is usually the more useful code to search for.

IGCSE Codes vs International A Level Codes

One of the easiest ways to avoid downloading the wrong paper is to first identify whether you're studying:

Edexcel International GCSE

or

Edexcel International A Level.

QualificationExample codeExample paper
IGCSE Mathematics A4MA14MA1/1H
IGCSE Physics4PH14PH1/1P
IGCSE Biology4BI1Biology papers under 4BI1
IGCSE Chemistry4CH1Chemistry papers under 4CH1
IAL PhysicsWPH11WPH11/01
IAL BiologyWBI11WBI11/01
IAL ChemistryWCH11WCH11/01
IAL MathematicsWMA11WMA11/01

The distinction matters because an IGCSE Physics student searching for 4PH1 needs a different set of papers from an International A Level Physics student searching for WPH11.

What About Codes Like WBI11 and WCH11?

The same idea applies to other International A Level subjects.

WBI11

International A Level Biology, Unit 1.

WCH11

International A Level Chemistry, Unit 1.

WPH11

International A Level Physics, Unit 1.

So if you're searching for:

WCH11 past papers

you should be looking for International A Level Chemistry Unit 1 papers, rather than IGCSE Chemistry papers.

A Simple Way to Find the Right Past Paper

You don't actually need to understand every part of every code.

Use this four-step method.

Step 1: Identify Your Qualification

Are you doing:

  • Edexcel International GCSE?

  • Edexcel International AS?

  • Edexcel International A Level?

Step 2: Identify Your Subject

For example:

  • Mathematics

  • Physics

  • Chemistry

  • Biology

  • Economics

  • Business

Step 3: Find Your Code

For example:

IGCSE Physics → 4PH1

IGCSE Mathematics A → 4MA1

IAL Physics Unit 1 → WPH11

Step 4: Check the Complete Paper Reference

For example:

4PH1/1P

or

4MA1/1H

or

WPH11/01

Then check the year and examination session.

That final step is important because the same unit or qualification code can have papers from multiple examination sessions.

Don't Search Only by the Subject Name

Imagine you search Google for:

Edexcel Physics past paper

You could find pages containing:

  • International GCSE Physics

  • International A Level Physics

  • UK GCSE Physics

  • UK A Level Physics

  • different specifications

  • different units

  • different examination sessions

That's a lot of results to sort through.

Searching for the paper code can be much more precise.

For example:

4PH1 past papers

or:

WPH11 past papers

or:

4MA1/1H past paper

can take you much closer to the exact paper you need.

Edexcel Paper Code Cheat Sheet

Save this section if you regularly use Edexcel past papers.

If you see...Think...
4MA1IGCSE Mathematics A
4PH1IGCSE Physics
4BI1IGCSE Biology
4CH1IGCSE Chemistry
4MA1/1HIGCSE Maths A Paper 1 Higher
4MA1/1FIGCSE Maths A Paper 1 Foundation
4PH1/1PIGCSE Physics Paper 1
WPH11IAL Physics Unit 1
WBI11IAL Biology Unit 1
WCH11IAL Chemistry Unit 1
WPH11/01IAL Physics Unit 1 paper reference

Remember that codes can change between specifications and qualifications, so always check the relevant Pearson Edexcel specification or examination material when you're unsure.

Find Your Edexcel Past Paper Faster

Once you know your paper code, finding the right past paper becomes much easier.

Instead of scrolling through hundreds of PDFs, you can search directly for the code you need.

At Past Paper Hub, you can find Edexcel IGCSE and International A Level past papers, mark schemes and other revision resources, making it easier to get to the paper you're looking for.

For example:

Looking for IGCSE Physics?
Search for 4PH1.

Looking for IGCSE Mathematics A?
Search for 4MA1.

Looking for IAL Physics Unit 1?
Search for WPH11.

The more familiar you become with these codes, the less time you'll spend searching and the more time you'll have for actually doing the papers.

Final Tip: Learn Your Own Paper Code

You don't need to memorise every Edexcel code.

Just learn the codes for your own subjects.

For example, if you're an IGCSE student taking Mathematics, Physics and Chemistry, you might need to recognise:

4MA1 — Mathematics A

4PH1 — Physics

4CH1 — Chemistry

If you're studying International A Level Physics, you might regularly work with:

WPH11 — Unit 1

WPH12 — Unit 2

and so on.

Once these codes become familiar, searching for past papers, mark schemes and exam resources becomes much faster.

The code isn't just a random string of letters and numbers. It's your shortcut to the right paper.

Looking for Edexcel Past Papers?

Find your Edexcel IGCSE and International A Level past papers, mark schemes and revision resources on Past Paper Hub.

Search by subject, paper code or examination session and get to the paper you need faster.

Start with the code. Find the paper. Do the paper. Learn from your mistakes.

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