What is the cpt code for debridement of four fingernails due to onychomcosis?

The CPT code for debridement of fingernails due to onychomycosis is typically 11730, which refers to the debridement of one nail. For multiple nails, the code 11732 can be used for the debridement of two to five nails. Therefore, for four fingernails, you would use CPT code 11732.