US · guidance
CMS Pub. 100-04, ch. 17, § 80.2.4
Billing and Payment Instructions for A/B MACs (A)
Claims for the oral anti-emetic drug aprepitant, either as a 3-day supply dispensed in a Tri-Pak or as the
first day supply (not dispensed in a Tri-Pak), must be billed to the A/B MAC (A) on the ASC 837
institutional claim format or on hard copy Form CMS-1450 with the appropriate cancer diagnosis and
HCPCS code or Current Procedural Terminology (CPT) code.
Claims for the second and third dose of the oral anti-emetic drug aprepitant not dispensed in a Tri-Pak
must be billed to the DME MAC.
The following payment methodologies apply when hospital and SNF outpatient claims are processed by
the A/B MAC (A):
• Based on APC for hospitals subject to the outpatient prospective payment system (OPPS);
• Under current payment methodologies for hospitals not subject to OPPS; or
• On a reasonable cost basis for SNFs.
Institutional providers bill for aprepitant under Revenue Code 0636 (Drugs requiring detailed coding).
NOTE: Inpatient claims submitted for oral anti-emetic drugs are processed under the current payment
methodologies.
Medicare contractors shall pay claims submitted for services provided by a CAH as follows: Method I
technical services are paid at 101% of reasonable cost; Method II technical services are paid at 101% of
reasonable cost, and, Professional services are paid at 115% of the Medicare Physician Fee Schedule
Data Base.
History
(Rev. 3085, Issued: 10-03-14, Effective: ICD-10: Upon Implementation of ICD-10; ASC X12: January 1, 2012, Implementation: ICD-10: Upon Implementation of ICD-10; ASC X12: November 4, 2014)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
89ab91ce14dcf12de6de5b7e4947b5a526c3645e4652e084bf5a899dd747d5b1
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