I am new to dermatology billing and would greatly appreciate your input. This Medicare patient comes in for an office visit, skin biopsy, and LN2 x3 cycles to 3 lesions.

Proposed billing 1:
99213 – 25
11100 – 59
17000 – 51
17003 *2

My question is: Do we need to triplicate the units for LN2 because it was done in 3 cycles? If so, is the coding below more appropriate?

Proposed billing 2:
99213 – 25
11100 – 59
17000 – 51
17003 *8

Please help! Thank you!