Jon,
I read the 75 FR 4448 standard and wanted to express my thanks to you for the link......this does help me focus on what appears to be the facility code 31 group....
Ironically with eRX the very volume of my POS 21 group was included and considered as part of the CMS eRx formula:
CMS included my POS 21 allowed/paid when considering the 10% rule of demoninator reimbursement. Rather all POS were used for top level calculation once it was determined I saw more than 100 patients per year and the allowed/paid of my POS 31 denominator codes was greater than 10% of my allowed/paid.
Cheers from the left coast and thank again.
Roxanne
