Web site:
http://www.cms.gov/Medicare/Prescription-Drug-Coverage/PrescriptionDrugCovContra/RxContracting_FormularyGuidance.html

Authority
The U.S. National Library of Medicine (NLM) produces the Metathesaurus CMS Formulary Reference File (MTHCMSFRF), which is based on the Centers for Medicare & Medicaid Services (CMS) Formulary Reference File (FRF).

Purpose
The FRF is a listing of drugs that CMS Part D plan sponsors must utilize in the submission of Part D formularies to CMS for review.

Metathesaurus Scope
MTHCMSFRF includes a subset of eight terms from the CMS FRF. It is included in each Metathesaurus Release as part of RxNorm.

Sites Consulted

1. Centers for Medicare & Medicaid Services. Baltimore (MD): Centers for Medicare & Medicaid Services (US). Formulary guidance - Centers for Medicare & Medicaid Services; [cited 2015 Mar 27]. Available from: http://www.cms.gov/Medicare/Prescription-Drug-Coverage/PrescriptionDrugCovContra/RxContracting_FormularyGuidance.html