I had lap DS in 2003. The code is 43845, whether done lap or open, just as it was 15 years ago. So, they’ve lied to you. Strike one.
I suspect they’re trying to scam you. They don’t do a standard DS surgery or they’d know the code. Strike two. And 43845 requires TWO anastomoses, which means it can’t be used for SADI, SIPS or LoopDS, which are all single anastomosis procedures that are NOT standard of care and thus there is no code for them. Perhaps they’ve been previously caught in insurance fraud for using 43845 for a single anastomosis procedure, which is NOT a standard of care procedure - it is still experimental. No selective fat malabsorption and what fat malabsorption there is, disappears by a year out. Which they didn’t tell you. Strike three. I would run, not walk, away from that practice.
A standard two anastomosis DS is a standard of care procedure, and you are entitled to chose among standard of care procedures for your disease if morbid obesity. If there is nobody local and in-network who does it, you are in most cases entitled to have the procedure at an out of network facility and/or by an out of network surgeon, at in network cost to you.
We can help you fight for the procedure that is right for you. I would NEVER have agreed to an RNY.