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The Language of Medicine

Updated for 2024/2025 ICD-10-CM Guidelines

Medical terminology is exactly like a foreign language. But instead of memorizing thousands of unique words, you only need to memorize the building blocks. Let's learn how to construct them.

The Three Building Blocks

Every medical term can be broken down into up to three distinct parts:

Prefix

Placed at the beginning of the word. Usually indicates location, direction, or time.

Example: "Peri-" (Around)

Word Root

The core foundation of the word. Usually indicates the body part involved.

Example: "Cardi/o" (Heart)

Suffix

Placed at the end of the word. Usually indicates a procedure, condition, or disease.

Example: "-itis" (Inflammation)

For example, if you combine Peri- + Cardi/o + -itis, you get Pericarditis: Inflammation around the heart!

Practice Lab

Use the Word Builder below to piece together common medical conditions. Try dropping parts into the Construction Zone to form a word.

Interactive Word Builder

Drag and drop parts to form medical terms, or tap them.

Construction Zone

Drop parts here to build a word...

Available Parts

Myo-
Muscle
Electro-
Electricity
Tachy-
Fast
Brady-
Slow
Hyper-
Above/Excessive
Hypo-
Below/Deficient
Peri-
Around
Endo-
Within/Inner
Epi-
Upon/Over
Osteo-
Bone
Cardi/o
Heart
-pnea
Breathing
Gastr/o
Stomach
Hepat/o
Liver
Nephr/o
Kidney
Neur/o
Nerve
Dermat/o
Skin
Pneum/o
Lungs/Air
Arthr/o
Joint
Oste/o
Bone
Glyc/o
Sugar
Lip/o
Fat
-tension
Pressure
-pathy
Disease
-gram
Record/Picture
-itis
Inflammation
-ectomy
Surgical Removal
-scopy
Visual Examination
-emia
Blood Condition
-osis
Abnormal Condition
-plasty
Surgical Repair
-megaly
Enlargement
-algia
Pain
PrefixRootSuffix

Ready to apply these roots to real clinical scenarios?

Enter the full Practice Lab
Professional Resource

Expert Deep Dive

Ready to move beyond the basics? Explore my comprehensive guide on the linguistic building blocks used in professional clinical analysis.

Breaking Down the Big Words: A Master Guide
Terry Stagg

Terry Stagg

CPC, COC, RHIA • Author

With 36 years in healthcare and 27 years as a Director of Information Systems, Terry Stagg bridges the gap between clinical documentation and the revenue cycle. He is a technology specialist and hospital data expert.

Up Next

Module 2: Body Systems

Continue to Module 2