DaVinci Payer Data Exchange (PDex) US Drug Formulary
1.1.0 - STU 1.1

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## CodeSystem: Codes for medication drug tiers in health plans

Summary

Defining URL: | http://hl7.org/fhir/us/davinci-drug-formulary/CodeSystem/usdf-DrugTierCS
Version: | 1.1.0
Name: | DrugTierCS
Title: | Codes for medication drug tiers in health plans
Status: | Active as of 2021-10-15T15:46:55+00:00
Definition: | Codes to represent the drug tier of a particular medication in a health plan. Base set are examples. Each plan may have its own controlled vocabulary.
Publisher: | HL7 Pharmacy Working Group
Content: | Complete: All the concepts defined by the code system are included in the code system resource
Source Resource: | XML / JSON / Turtle

This Code system is referenced in the content logical definition of the following value sets:

- DrugTierVS

This code system http://hl7.org/fhir/us/davinci-drug-formulary/CodeSystem/usdf-DrugTierCS defines the following codes:

Code | Display | Definition
generic | Generic | Commonly prescribed generic drugs that cost more than drugs in the ‘preferred generic’ tier.
preferred-generic | Preferred Generic | Commonly prescribed generic drugs.
non-preferred-generic | Non-preferred Generic | Generic drugs that cost more than drugs in ‘generic’ tier.
specialty | Specialty | Drugs used to treat complex conditions like cancer and multiple sclerosis. They can be generic or brand name, and are typically the most expensive drugs on the formulary.
brand | Brand | Brand name drugs that cost more than ‘preferred brand’ drugs.
preferred-brand | Preferred Brand | Brand name drugs
non-preferred-brand | Non-preferred Brand | Brand name drugs that cost more than ‘brand’ drugs.
zero-cost-share-preventative | Zero cost-share preventative | Preventive medications and products available at no cost.
medical-service | Medical Service | Drugs that must be administered by a clinician or in a facility and may be covered under a medical benefit.