CPT 11102

Understanding Your Skin Biopsy Bill: CPT Code 11102

CPT code 11102 is used when your doctor performs a shave biopsy on a single skin lesion. This is a common dermatology procedure where a thin layer of skin tissue is removed for testing.

What Medicare Pays vs. What You Might Be Charged
Category Amount
Medicare Allowed Rate What Medicare approves for this service $80.91
Typical Billed Amount What providers commonly charge $100 – $400
Potential Markup How much more you might pay vs. Medicare rate 394% above Medicare
Why the difference? Providers set their own prices. Without insurance, you may be billed the full amount. Even with insurance, your co-pay is often based on the provider's charge — not the Medicare rate.

What CPT Code 11102 Means

CPT code 11102 describes a "tangential biopsy of skin, single lesion," which is commonly known as a shave biopsy. This procedure involves your doctor using a small blade or razor to remove a thin, horizontal slice of skin tissue from a suspicious mole, growth, or other skin lesion.

Your dermatologist typically uses this method when they need to examine skin cells under a microscope to check for cancer, infections, or other skin conditions. The procedure is quick, usually taking just a few minutes, and is performed in the doctor's office with local anesthesia to numb the area.

This code applies only when one lesion is biopsied. If your doctor takes samples from multiple spots during the same visit, you'll see additional codes on your bill for each additional biopsy performed.

How CPT 11102 Billing Works

When you receive your medical bill or explanation of benefits, you'll see CPT code 11102 listed for your skin biopsy. The Medicare reimbursement rate for this procedure is $80.91, but most healthcare providers charge between $100 and $400 for this service.

Your actual out-of-pocket cost depends on your insurance coverage, deductible, and whether you've met your annual deductible. If you have Medicare, you'll typically pay 20% of the Medicare-approved amount after meeting your deductible. Private insurance plans vary, but many cover dermatology biopsies as medically necessary procedures.

The bill should clearly show one unit of CPT 11102 for each single lesion that was biopsied. You may also see separate charges for the pathology lab work (analyzing the tissue sample), which uses different billing codes and is often billed separately by the laboratory.

Checking Your Bill for Accuracy

To verify your CPT 11102 billing is correct, first confirm that the number of units matches the number of lesions your doctor actually biopsied. If only one spot was sampled, you should see exactly one unit of code 11102. Multiple biopsies should show additional codes like 11104 or 11106 for each extra lesion.

Check that the charge falls within the typical range of $100-$400. If you see a charge significantly higher than $400, contact your healthcare provider's billing department to ask for an itemized explanation. Sometimes errors occur, such as billing for multiple procedures when only one was performed.

If you believe there's an error, gather your visit notes or discharge summary that describes what procedures were actually done. Contact your provider's billing office first, as they can often resolve simple mistakes quickly. If the issue isn't resolved, you can also contact your insurance company to request a review of the claim.

Codes Often Confused With CPT 11102

CPT 11104 CPT 11106

Frequently Asked Questions

How much does a skin biopsy cost with insurance?
The cost varies by insurance plan, but most patients pay between $20-$100 out of pocket for CPT 11102. With Medicare, you typically pay 20% of the $80.91 approved amount, which is about $16, plus any unmet deductible.
Why am I getting separate bills for my skin biopsy?
You'll often receive two bills: one from your dermatologist for taking the biopsy (CPT 11102) and another from the pathology lab for analyzing the tissue sample. This is normal billing practice since these are separate services performed by different providers.
What if I was charged for multiple biopsies but only had one done?
Contact your healthcare provider's billing department immediately with your visit documentation. Billing errors do happen, and they should correct any mistakes and resubmit the claim to your insurance with the proper single unit of CPT 11102.