If a subacromial decompression is performed (decompression with acromioplasty or CA ligament release) I would bill 29822 with 29826.
Due to the updated surgical policy manual this year [/B]code 29823 may only be billed with 29824, 29827 & 29828. So combining 29823 with a code set that does not include one of these codes could be problematic.
Getting insurance companies to process claims correctly is a glacial process. The CMS NCCI edit was removed on 29823 over a year ago. The surgical policy manual was updated this year specifically stating that 29823 can be billed with these codes, however insurance companies are still denying code 29823 due to the outdated rules. So just as a practical matter, to keep denials down, I would submit code 29823 with the codes the policy states that it can be paired with.
I tried combining 29826 into the debridement and billed 29823 instead and got a bunch of denials.
My two cents.