6 month supervised diet? bc/bs
http://medicalpolicy.hcsc.net/medpolicies/home?corpEntCd=IL1&path=templatedata\medpolicies\surg\data\SUR716.003_2005-01-18&ctype=MEDPOLICIES-POLICY&cat=SURGERY#hlink
try the link above....it is the medical policy for BCBS Illinois regarding obesity surgery......
If the link doesn't work...go to www.bcbsil.com
log onto the "providers" part
and look up their active policies.
Hope that helps.
Paula