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

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## Extension: Step Therapy Limit

A Boolean indication of whether the coverage plan imposes a step therapy limit on this drug.

The official URL for this extension is:

    http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-StepTherapyLimit-extension

Status: active
Extension maintained by: HL7 Pharmacy Working Group

Context of Use

This extension may be used on the following element(s):

- Element

Usage info

Usage:

- Use this Extension: Formulary Drug
- Examples for this Extension: MedicationKnowledge/FormularyDrugV3001, MedicationKnowledge/FormularyDrugV3002, MedicationKnowledge/cmsip9, MedicationKnowledge/formularydrugV1002

### Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

- Text Summary
- Differential Table
- Snapshot Table
- All

This structure is derived from Extension

Summary

Mandatory: 1 element
Fixed Value: 1 element
Prohibited: 1 element

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Step Therapy Limit
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-StepTherapyLimit-extension"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Step Therapy Limit
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-StepTherapyLimit-extension"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Mandatory: 1 element
Fixed Value: 1 element
Prohibited: 1 element

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Step Therapy Limit
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-StepTherapyLimit-extension"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Step Therapy Limit
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-StepTherapyLimit-extension"
value[x] |  | 1..1 | boolean | Value of extension
Documentation for this format

Other representations of profile: CSV, Excel, Schematron