Hi Guest!

First thing you will need for a pre-auth request is diagnosis code(s), here are some options for you below:

Q35.1 - Cleft hard palate
Q35.3 - Cleft soft palate
Q35.5 - Cleft hard palate with cleft soft palate
Q36.0 - Cleft lip, bilateral
Q36.1 - Cleft lip, median
Q36.9 - Cleft lip, unilateral

As for the procedure codes:

D8090 - Comprehensive orthodontic treatment of the adult dentition
D6740 - retainer crown - porcelain/ceramic
D6245 - pontic - porcelain/ceramic
D2740 - crown - porcelain/ceramic substrate

There are not a direct crosscodes we are aware of for these procedures, so you can either use the "D" code on the pre-authorization request/medical claim (many insurers these days will process "D" codes when they are medically necessary services), or you can use the CPT code below and include a narrative report describing the procedure:
41899 - Unlisted procedure, dentoalveolar structures


Hope this helps!