CPT Codes Explained: How to Look Up Any Medical Procedure Price

What Is a CPT Code?

CPT (Current Procedural Terminology) codes are 5-digit numbers that identify every medical procedure, service, and test in healthcare. Created and maintained by the American Medical Association, they’re the universal language of medical billing.

Why should you care? Because CPT codes are the key to price transparency. When hospitals publish their prices (as required by federal law), they organize them by CPT code. When you want to compare prices, you need your procedure’s CPT code.

Common CPT Code Examples

Here are some of the most frequently searched procedures on CarePrices.ai (we cover 10,522 CPT codes in total):

How to Find Your CPT Code

You can find the CPT code for your upcoming procedure in several places:

1. Your doctor’s order or referral — often listed in the procedure description
2. Prior authorization letter from your insurance company
3. Ask your doctor’s office — “What CPT code will be billed for this procedure?”
4. Search on CarePrices.ai — type the procedure name and we’ll match it to the correct code
5. Your previous EOB — if you’ve had the procedure before, the CPT code appears on the explanation of benefits

CPT Code Structure

CPT codes are organized into categories by number range:

• 10000-19999: Integumentary (skin procedures)
• 20000-29999: Musculoskeletal (orthopedic surgery)
• 30000-39999: Respiratory, cardiovascular
• 40000-49999: Digestive system
• 50000-59999: Urinary, reproductive
• 60000-69999: Endocrine, nervous system, eyes, ears
• 70000-79999: Radiology/Imaging
• 80000-89999: Pathology and laboratory
• 90000-99999: Medicine (evaluation & management, vaccines, etc.)

Modifiers: The Fine Print

CPT codes sometimes include 2-digit modifiers that change the meaning:

• -26: Professional component only (just the doctor’s interpretation)
• -TC: Technical component only (just the facility/equipment)
• -LT/-RT: Left side / Right side
• -50: Bilateral procedure (both sides)
• -59: Distinct procedural service (not bundled)

Modifiers are important for understanding your bill. If you see CPT 73721-26, that’s only the radiologist’s reading fee for your knee MRI — the facility fee is billed separately.

Using CPT Codes to Compare Prices

Once you have your CPT code, you can:

1. Search it on CarePrices.ai to see prices at every facility near you
2. Call facilities directly and ask “What is your price for CPT [code]?”
3. Verify your insurance benefit by asking “What is my cost-sharing for CPT [code] at [facility]?”
4. Request a Good Faith Estimate (required by law) referencing the specific CPT code

Speaking the same language as billers — CPT codes — transforms you from a confused patient into an informed consumer.

Start Your Price Search

Search any CPT code on CarePrices.ai to see real prices from 380,000+ healthcare facilities and thousands of surgery centers nationwide.

Related Reading

• MRI Knee (CPT 73721) Cost Guide
• Colonoscopy (CPT 45378) Cost Guide
• FAQ — More about how to use CarePrices.ai