Mastering Medical Coding
Medical Terminology
The Language of Medicine
Before you can code a medical record, you need to understand the language it's written in. Medical terminology can seem intimidating, but it follows a logical structure. Think of it less like memorizing a dictionary and more like learning a system. Once you understand the components, you can decipher even unfamiliar terms.
Building Blocks of Medical Terms
Most medical terms are assembled from smaller pieces, much like building with blocks. There are three main types of blocks: root words, prefixes, and suffixes. A combining vowel, usually an 'o', is often used to make the term easier to pronounce.
Root Word
noun
The core of the word, which gives it its essential meaning. It often refers to a body part, organ, or system.
The root provides the basic subject. For example, cardi refers to the heart, and hepat refers to the liver.
Prefix
noun
A word part attached to the beginning of a root word to modify its meaning. Prefixes often indicate position, number, time, or direction.
A prefix changes the root's meaning. Sub- means under, so subhepatic means under the liver.
Suffix
noun
A word part attached to the end of a root word to modify its meaning. Suffixes often describe a condition, disease, or procedure.
Let's put it all together. Consider the term pericarditis.
peri-(prefix) means 'around'.cardi(root) means 'heart'.-itis(suffix) means 'inflammation'.
So, pericarditis is an inflammation of the area around the heart. By breaking the word down into its components, you can determine its meaning.
Common Word Parts
You don't need to memorize every medical term. Instead, focus on learning the most common prefixes, suffixes, and root words. This will give you the tools to interpret the majority of terms you'll encounter in patient records.
Understanding the roots, prefixes, and suffixes of words can help you decipher meanings and expand your vocabulary more easily.
Here are some common prefixes you'll see frequently:
| Prefix | Meaning | Example |
|---|---|---|
a-, an- | without, not | apnea (without breath) |
brady- | slow | bradycardia (slow heart rate) |
dys- | bad, painful, difficult | dysphagia (difficulty swallowing) |
hyper- | excessive, above | hypertension (high blood pressure) |
hypo- | deficient, under | hypoglycemia (low blood sugar) |
tachy- | fast, rapid | tachycardia (fast heart rate) |
And here are some common suffixes that describe procedures, conditions, or diseases:
| Suffix | Meaning | Example |
|---|---|---|
-algia | pain | myalgia (muscle pain) |
-ectomy | surgical removal, excision | appendectomy (removal of the appendix) |
-itis | inflammation | gastritis (stomach inflammation) |
-logy | study of | cardiology (study of the heart) |
-plasty | surgical repair | rhinoplasty (surgical repair of the nose) |
-rrhea | flow, discharge | rhinorrhea (runny nose) |
Medical Shorthand
Beyond full terms, medical records are filled with abbreviations and symbols. This shorthand saves time but requires careful interpretation. A single abbreviation can have multiple meanings depending on the context, so it's crucial to understand the situation in which it's used.
For example, RA could mean 'rheumatoid arthritis' in an orthopedic note, but 'right atrium' in a cardiology report. Organizations like The Joint Commission even maintain a 'Do Not Use' list of abbreviations that are prone to misinterpretation to improve patient safety.
| Abbreviation | Meaning |
|---|---|
BP | Blood pressure |
CBC | Complete blood count |
Dx | Diagnosis |
NPO | Nothing by mouth (nil per os) |
prn | As needed (pro re nata) |
Rx | Prescription |
SOB | Shortness of breath |
Sx | Symptoms |
Learning this new language is the first step toward becoming a proficient medical coder. It provides the foundation for accurately reading and interpreting the clinical documentation you'll work with every day.
Ready to test your knowledge? Let's see how well you can break down and define these medical terms.
In medical terminology, what is the primary function of a root word?
The term 'subhepatic' refers to a location under which organ?