Dermatology Billing Services Measured Right
Size-accurate excision coding, destruction counts that match the note, Mohs billed by stage, and an airtight cosmetic/medical split. We collect what dermatology's procedure volume earns, and help you win both markets online too.
Understanding Dermatology Challenges
Competing for cosmetic vs. medical dermatology patients
Showcasing aesthetic outcomes visually
Managing wait times and new patient acquisition
Social media marketing in a visual specialty
Services for Dermatology Practices
Visual-First Website
Stunning gallery-driven websites perfect for showcasing dermatological outcomes.
Instagram & Social Marketing
Professional social media management showcasing before/after results compliantly.
Medical & Cosmetic SEO
Dual SEO strategy capturing both insurance and cash-pay patient searches.
Aesthetic Procedure Campaigns
PPC campaigns for Botox, fillers, laser treatments, and more.
Medical Billing for Dermatology
Our dermatology billing services work in the units the specialty is measured in: millimeters. Lesion excision codes key off documented size and margins, destructions count lesions, Mohs bills by stage and block, and pathology adds a second claim stream. Multiple procedures per visit make modifier 59 discipline essential, and the cosmetic/medical boundary must be airtight. We hold malignant excisions for the path report, keep destruction counts matched to the note, and make sure distinct-site procedures get paid instead of bundled.
Size- and site-accurate excision coding (11400-11646) including margins, with correct benign/malignant sequencing off the path report
Multiple-procedure billing with defensible modifier 59/XS usage across same-day destructions and biopsies
Clean separation of cosmetic (cash) and medical (insurance) services in scheduling, documentation, and claims
Mohs surgery billing (17311-17315) by stage and tissue block, with same-day repair coding kept unbundled where legitimate
Repair coding (simple through complex) sequenced correctly with excisions, so closures aren't given away
Key CPT Codes in Dermatology Billing
The codes that drive most of the revenue in this specialty, and what has to be right on each one.
| Code | Service | Billing Note |
|---|---|---|
| 11102-11107 | Skin biopsy (tangential / punch / incisional) | Code by technique; first lesion plus add-on codes for additional. Distinct-lesion biopsies alongside other procedures need modifier 59/XS. |
| 11400-11446 | Excision, benign lesion (by site and size) | Size = lesion diameter plus narrowest margins, measured before excision. Under-documented measurements force permanent down-coding. |
| 11600-11646 | Excision, malignant lesion (by site and size) | Hold for the pathology report; billing benign and rebilling malignant later is rework, billing malignant without path is audit exposure. |
| 17000 / 17003 / 17004 | Destruction, premalignant lesions (AKs) | First lesion, each additional through 14, then 15+. The note's lesion count and the claim must match exactly. |
| 17110 / 17111 | Destruction, benign lesions | Up to 14 / 15 or more lesions. A different tiering than AKs; mixing the families is a common error. |
| 17311-17315 | Mohs micrographic surgery (by stage and block) | Requires the surgeon to act as both surgeon and pathologist; stage and block counts drive the claim. |
| 12031-13153 | Intermediate and complex repairs | Separately payable with excisions when documented; simple repair is included. Add lengths of same-classification repairs within a site group. |
| 88305 + TC/26 | Surgical pathology, level IV | In-office path labs split technical and professional components based on who processes and who reads. |
Top Dermatology Denials We Prevent
Procedure deemed cosmetic, not medically necessary
How we prevent it: Medical-necessity documentation (symptoms, changes, functional impact) is verified before insurance claims go out, and genuinely cosmetic services are routed to the cash side from the start.
Excision down-coded for missing size documentation
How we prevent it: Lesion plus margin measurements are captured at the time of surgery in the note, so the claim supports the size-based code selected.
Same-day procedures bundled without modifier support
How we prevent it: Distinct-lesion and distinct-site procedures carry modifier 59/XS with site documentation, so multiple-procedure visits pay what they earned.
Destruction counts disputed
How we prevent it: Lesion counts in the note and on the claim are reconciled before submission; payers audit these, and matching documentation ends the conversation.
Repair billed but bundled into the excision
How we prevent it: Intermediate and complex repairs are coded and documented as such; simple closures aren't billed, and legitimate layered repairs aren't given away.
Dermatology Billing FAQs
Excision codes are chosen by lesion diameter plus margins as documented at the time of surgery, not the pathology specimen size, which shrinks. Under-documented measurements force down-coding. We also hold malignant excision claims for the path report so the correct code family is billed.
17000 covers the first premalignant lesion, 17003 each additional through 14, and 17004 for 15 or more, with counts documented. Benign destruction (17110/17111) follows its own tiering. Payers audit counts, so the note and the claim must match exactly.
Yes, when performed on distinct lesions and supported with modifier 59/XS and site documentation. Same-lesion combinations are bundled. Distinct-site multiple procedures are legitimate revenue that timid coding leaves behind, but they must be documented as distinct.
Yes. Mohs codes (17311-17315) bill by stage and tissue block and require the surgeon to act as both surgeon and pathologist, documented as such. Same-day reconstruction is separately payable when coded and documented correctly. We keep the stage counts, block counts, and repair coding aligned with the op note.
Cosmetic services stay out of insurance claims entirely and run on transparent cash pricing, while borderline services (medically necessary lesion removals, functional repairs) get the documentation that supports coverage. The airtight split protects you in both directions: no fraud exposure, and no covered service accidentally given away as cosmetic.
Dermatology billing typically runs 4% to 7% of collections. The return concentrates in three places: excisions coded to documented size instead of down-coded, multiple-procedure visits paid in full, and the pathology claim stream reconciled instead of leaking.
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