AU eRequesting
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AU eRequesting, published by HL7 Australia. This guide is not an authorized publication; it is the continuous build for version 0.1.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7au/au-fhir-erequesting/ and changes regularly. See the Directory of published versions

Use cases

AU eRequesting R1 use cases

This page contains the use cases for AU eRequesting for the first release of the TDG Implementation Guide (R1). This is a working page and will reflect the current state of agreement by the TDG as well as the current draft of the use case material.

Feedback on these use cases is requested. In particular we are seeking assistance to refine the detailed description of the use cases (the non-bolded text). Please provide feedback including improvement suggestions at this page: AU eRequesting R1 use cases.

Diagnostic imaging use cases

ID Description Actors Systems Data Groups
D01 Request for diagnostic imaging (generic data collection requirements)

A requesting clinician requires diagnostic imaging for a patient, following a consultation about an affected body part. The request contains information such as: Patient demographics (including sex and gender), Targeted body part, Type of imaging required, Reason for requesting imaging, relevant clinical history, any precautions about the patient’s other conditions such as device implants/allergies/medicines/related pathology results, destination(s) where the results need to be sent back to (including Copy To/Carbon Copy/copy to practitioners, as well as the original requestor), and information to support billing.
Patient
Requesting Practitioner (e.g. GP)
Requesting System Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Preferred Reporting Clinician
D02 Request for diagnostic imaging (Assigned request)

A requesting clinician decides that an MRI head scan is indicated for a patient. The clinician and patient agree upon a local diagnostic imaging service provider and the clinician submits the eRequest for the scan directly to that provider. The patient is not required to present an eRequest token to the provider when they make a booking or attend the test.
Patient
Requesting Practitioner (e.g. GP)
Diagnostic imaging service provider
Requesting System
Service provider booking system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Provider Details
D03 Request for diagnostic examination (Unassigned request)

A requesting clinician requires a chest X-Ray for a patient, following a consultation about pain in their torso. The clinician creates the eRequest, then generates a token and gives this to the patient. The patient researches local diagnostic imaging service providers and makes a booking with one of them. When the patient makes a booking or attends the appointment, they present the token to the service provider who uses it to download the eRequest information into their booking system.
Patient
Requesting Practitioner (e.g. GP)
Diagnostic imaging service provider
Requesting System
Service provider booking system
Token management system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Token Identifier
D04 Request for diagnostic examination (Reassigned request)

A requesting clinician requires a CT Brain scan (with contrast) for a patient, following a consultation about neurological symptoms. The clinician and patient agree upon a local diagnostic imaging service provider and the clinician submits the eRequest for the scan to that provider. Before the patient is due to attend the provider, the patient changes their mind and elects to have the test performed by a different provider. The patient makes a booking with the new provider and when they attend the appointment they present a token to the service provider who uses it to download the eRequest information into their booking system.
Patient
Requesting Practitioner (e.g. GP)
Diagnostic imaging service provider
Requesting System
Service provider booking system
Token management system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Provider Details (initial provider)
Token Identifier?

Pathology use cases

ID Description Actors Systems Data Groups
P10 Request for a pathology test (generic data collection requirements)

A requesting clinician requires a pathology test for a patient, following a consultation. The request contains information such as: Patient demographics (including sex and gender), Specimen type, Type of test required, Reason for requesting, any precautions about the patient’s other conditions such as device implants/allergies/medicines/related pathology results, destination(s) where the results need to be sent back to (including Copy To/Carbon Copy/copy to practitioners, as well as the original requestor), and information to support billing.
Patient
Requesting Practitioner (e.g. GP)
Pathology service provider
Requesting System Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Preferred Reporting Clinician
P02 Request for a pathology test (Assigned request)

A requesting clinician requires a Liver Function Test to be performed on a patient to assist with diagnosing a condition. The clinician creates the request and after discussing service providers with the patient, sends it directly to a pathology service that the clinician and patient agree upon.
Patient
Requesting Practitioner (e.g. GP)
Pathology service provider
Requesting System
Service provider booking system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Provider Details
P01 Request for a pathology test (Unassigned request)

A requesting clinician requires a Full Blood Count test to be performed on a patient to assist with diagnosing a condition. The clinician creates the eRequest, then generates a token and gives this to the patient. The patient researches local pathology service providers and selects one to perform the test. The patient presents the token to the service provider who uses it to download the eRequest information into their Collection system or Laboratory Information System (LIS).
Patient
Requesting Practitioner (e.g. GP)
Pathology service provider
Requesting System
Service provider booking system
Token management system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Token identifier
P03 Request for a pathology test (Reassigned request)

A requesting clinician requires a Thyroid Stimulating Hormone (TSH) test to be performed on a patient. The clinician creates the request and after discussing service providers with the patient, sends it directly to a pathology service that the clinician and patient agree upon. After leaving the clinician's office, the patient changes their mind and elects to have the test performed by a different provider. The patient proceeds directly to the new provider and presents a token for the request, which the provider uses to download the eRequest information into their testing management system.
Patient
Requesting Practitioner (e.g. GP)
Pathology service provider
Requesting System
Service provider booking system
Patient Details
Requestor Details
Requested Service Details (includes site to be tested)
Relevant Clinical Details
Billing Details
Provider Details (initial provider)
Token Identifier?
P09 Rule 3 INR Test

A clinician requests an ongoing International Normalized Ratio (INR) test specifying a "Rule 3 Exemption" for a patient undergoing anticoagulant therapy. The requester requires 6 INR tests to be performed over the next 6 months.
Patient
Requesting Practitioner (e.g. GP)
Pathology service provider
Patient
Requesting System
Service Provider's LIS system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details

General use cases

ID Description Actors Systems Data Groups
G01 Tracking fulfilment of a Service Request

A GP checks the status of a requested test for a patient, e.g. Accepted, Cancelled, Pending, Collected, Preliminary, Completed, etc.
Requesting Practitioner (e.g. GP) Requesting System
EHR
Provider Details
Token Identifier?
Patient Identifiers?
G02 Cancelling an eRequest (requestor)

An eRequest is revoked/cancelled by the requesting health care professional because the requested service is no longer required.
Requesting Practitioner (e.g. GP) Requesting System
EHR
Provider Details
Token Identifier?
Patient Identifiers?
G03 Cancelling an eRequest (provider)

An eRequest is revoked/cancelled by the service provider because they are no longer able to provide the requested service for the patient. This cancellation has occurred before the provider has started the service (e.g. before the patient has attended the provider), hence it is not considered a non-fulfilment of the service.
Service Provider EHR Requestor Details
Token Identifier?
Patient Identifiers?
G07 Specification of results to be copied to another clinician

A hospital clinician requests diagnostic imaging for a patient after they have been discharged from the hospital, as a follow-up test. The results are requested to be sent to the hospital clinician and the patient's GP.
Hospital Clinician / Specialist
GP / Specialist
Service Provider
Requesting System
Service provider booking system
Patient Details
Requestor Details
Requested Service Details
Relevant Clinical Details
Billing Details
Results Copy To