11104 CPT Code – A Simple Guide to Billing and Reimbursement

January 8, 2025

11104 CPT Code – A Simple Guide to Billing and Reimbursement

The 11104 CPT code is used for a punch biopsy of the skin. 

This code applies when a doctor removes a small, round piece of skin for testing, usually to check for things like cancer, rashes, or other skin conditions. 

It’s the go-to code for a primary biopsy, and if more lesions are biopsied during the same visit, CPT code 11105 is used for each additional one.

Getting the coding right helps ensure dermatology practices get properly reimbursed, reduces the chances of denied claims, and keeps medical billing simple.

Let’s explore the ins and outs of the 11104 CPT code.

When is CPT Code 11104 Used?

CPT 11104 is used when a dermatologist needs to biopsy a suspicious skin lesion or abnormal growth. 

Some common reasons include:

  • Checking lesions for potential skin cancer
  • Diagnosing chronic rashes or skin disorders
  • Investigating unexplained skin growths

Proper documentation helps prove medical necessity, which makes insurance approvals easier and keeps claims from being rejected.

Step-by-Step Breakdown of a Punch Biopsy

Let’s take a closer look at what CPT code 11104 is used for:

Preparation

  • The area is cleaned with antiseptic.
  • A local anesthetic is applied to numb the skin.

Procedure

  • A circular punch tool is used to remove a small section of skin.
  • The sample is carefully collected and sent for testing.

Post-Procedure

  • The site is closed with sutures or adhesive strips, if needed.
  • The patient is given aftercare instructions.

Including clear documentation and images can help with insurance claims and reduce questions from payers.

Modifiers and Billing Guidelines for CPT 11104

Let’s look at some of the billing guidelines surrounding CPT 11104.

Common Modifiers to Use with CPT 11104

  • Modifier 59: Indicates multiple biopsies on different lesions during the same visit.
  • Modifier 26: Used if the professional part of the service (such as interpretation) is billed separately.

Tips for Accurate Billing

  • Clearly document the number and location of lesions biopsied.
  • Make sure the procedure description matches the code.
  • Avoid bundling errors by coding each biopsy site separately when necessary.

Accurate coding and proper use of modifiers help ensure your claims get paid quickly and without issues.

Reimbursement and Insurance Tips for CPT 11104


On average, CPT code 11104 reimburses around $100 to $150, though this can vary based on location and insurance policies.

Here’s a few things that can affect reimbursement:

  • Whether the claim is fully documented
  • If all modifiers are used correctly
  • Differences in insurance provider guidelines

Focusing on complete, detailed documentation and double-checking codes before submitting can help avoid delays and denials.

How The Auctus Group Can Help with Dermatology Billing And The 11104 CPT Code

At The Auctus Group, we know how frustrating medical billing can get, especially when it comes to dermatology procedures like punch biopsies. 

Our team specializes in making sure your billing is accurate, claims are submitted smoothly, and reimbursements are maximized.

Here’s how we can help you:

  • Revenue Cycle Management – We handle everything from the moment a claim is submitted until payment is received.
  • Coding and Documentation Support – Our team helps ensure codes like 11104 are applied correctly, reducing errors and avoiding denials.
  • Denial and Appeals Management – If a claim is denied, we step in to correct and resubmit it, ensuring your practice doesn’t lose revenue.
  • EHR Integration – We work with your existing systems to simplify how codes are entered and tracked, saving time for your team.

Our goal is to help dermatologists worry less about billing and focus more on patient care. 

If you’re dealing with frequent claim rejections or complex billing issues, we’re here to help.

Conclusion: CPT Code 11104

CPT code 11104 is essential for accurately documenting punch biopsies, but the medical billing process can get tricky without the right support. 

With accurate coding, clear documentation, and help from The Auctus Group, dermatology practices can simplify their billing and improve their bottom line.

If you’re ready to take the hassle out of billing, reach out to us today and let us handle the hard part for you.

FAQs

Can you bill CPT 11102 and 11104 together?
Yes, you can bill CPT 11102 and 11104 together if different types of biopsies are performed on separate lesions during the same visit. CPT 11102 is for tangential biopsies, while CPT 11104 is for punch biopsies. To avoid bundling issues, use modifier 59 to show that the procedures were distinct and not part of the same service.

Is 11104 a valid CPT code?
Yes, CPT 11104 is a valid code used to report punch biopsies of the skin. This code is used for the first or primary lesion, and CPT 11105 is used for any additional lesions biopsied during the same session.

Can you bill for two CPT codes at the same time?
Yes, multiple CPT codes can be billed together if they represent different procedures or services provided during the same visit. When billing for two procedures, ensure each one is clearly documented, and use appropriate modifiers like 59 or 51 to show they were distinct services.

What happens if you use the wrong CPT code?
Using the wrong CPT code can lead to claim denials, delayed payments, or audits. It may also result in underpayment or overpayment, which can trigger compliance issues. Correcting and resubmitting the claim with the right code is necessary to receive proper reimbursement. If errors happen frequently, working with a billing service like The Auctus Group can help reduce mistakes and streamline the process.

When to use 59 or 51 modifier?
Use modifier 59 when billing for procedures that are separate and distinct from one another, such as performing biopsies on different lesions. Modifier 51 is used when multiple procedures are performed during the same session, but they are part of the same general service or surgical session. Modifier 51 typically results in reduced reimbursement for the second procedure, while 59 signals that full reimbursement is justified for both. Proper use of these modifiers ensures correct payment and prevents claim rejections.

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