414.102—General payment rules.
(a) General rule.
For items and services furnished on or after January 1, 2002, Medicare pays for the items and services as described in paragraph (b) of this section on the basis of 80 percent of the lesser of—
(1)
The actual charge for the item or service; or
(2)
The fee schedule amount for the item or service, as determined in accordance with § 414.104.
(b) Payment classification.
(1)
CMS or the carrier determines fee schedules for Parenteral and enteral nutrition (PEN) nutrients, equipment, and supplies, as specified in § 414.104.
(2)
CMS designates the specific items and services in each category through program instructions.
(c) Updating the fee schedule amounts.
For each year subsequent to 2002, the fee schedule amounts of the preceding year are updated by the percentage increase in the CPI-U for the 12-month period ending with June of the preceding year.