Medicare Claims Processing Manual (Pub. 100-04), Ch. 12 § 20.5
No Adjustments in Fee Schedule Amounts
20.5 - No Adjustments in Fee Schedule Amounts
(Rev. 1, 10-01-03)
B3-15054
A/B MACs (B) may not make adjustments in fee schedule amounts provided by CMS for:
• Inherent reasonableness;
• Comparability;
• Multiple visits to nursing homes (i.e., when more than one patient is seen during the
same trip);
• Refractions - If A/B MACs (B) receive a claim for a service that also indicates that a
refraction was done, A/B MACs (B) do not reduce payment for the service. The CMS
has already made the reduction in the fee for refractions provided to A/B MACs (B);
• HCPCS alpha-numeric modifiers AT (acute treatment), ET (emergency treatment), LT
(left side of body), RT (right side of body), and SF (second opinion ordered by PRO);
• CPT modifiers -23 (unusual anesthesia), -32 (mandated services), -47 (anesthesia by
surgeon), -76 (repeat procedure by same physician), and -90 (reference laboratory); and
• A/B MAC (B)-unique local modifiers (HCPCS Level 3 modifiers beginning with the
letters w through z).