Physical therapy billing runs on a system most other specialties don’t deal with at all: timed codes billed in units based on minutes of treatment. Get the unit calculation wrong, and it doesn’t just cause one denial — it repeats across every visit…
Dermatology Medical Billing: Codes, Modifiers, and Common Denials
Dermatology billing runs on three CPT code families — biopsy, destruction, and excision — plus a separate set of codes for Mohs micrographic surgery. Most dermatology.