Hi Kay@ The Foleck Center!
D9222 – deep sedation/general anesthesia – first 15 minutes
and
D9223 – deep sedation/general anesthesia – each additional 15 minutes
can be crosscoded to:
00170 - Anesthesia for intraoral procedures, including biopsy; not otherwise specified
As for a modifier for crowns, there isn't a standard modifier you'll need to use, however you may use the JP qualifier to indicate the tooth numbers.
There is not a direct crosscode for crowns in the medical procedure coding (CPT) system, so you can either bill the "D" code on the medical claim (many insurers these days will process "D" codes when they are medically necessary services), or you can use the CPT codes below and include a narrative report describing the procedure:
41899 - Unlisted procedure, dentoalveolar structures
If you use 41899, you can use the ZZ qualifier to provide a short description of what procedure the code is being used to represent.
The JP qualifier to indicates the tooth numbers. So for your case teeth 2-11,13,20,22-29, it would read:
JP2 3 4 5 6 7 8 9 10 11 13 20 22 23 24 25 26 27 28 29
The ZZ qualifier indicates you will be providing a short description, like this:
ZZmaxillary and mandibular crowns
An example of how to use the ZZ and JP qualifiers on the medical claim can be found int he NUCC's claim form manual on page 47 & 48, here is a link to it:
https://nucc.org/images/stories/PDF/1500_claim_form_instruction_manual_2021_07-v9.pdfHope this helps!