For the most part, lipomas are coded from the musc/skel section- depending on the operative note of course. Simple closure would be included.
You gave a scenario of 6 lipomas costing about $16K, for us, it would be closer to $4000 total.
Seems like your fee's are extremely high. Of course I am not in Alaska.
We need to see an op note to suggest codes, but you may want to do a little research on your charge to payment ratio. 16k for 6 lipomas, thats an average of over $2600 each. Is your reimbursement that high? I show Medicare reimburses about 400 bucks on a thigh lipoma for my area. I'd worry about an over-inflated A/R.