EHR IP Sequence Diagrams
Sequence Diagram EHRIP14 - Unmask Patient Inormation

EHR IP Summary

Description

This EHR Interoperability Profile describes the EHR Communication Steps (EHR_CS) for a user who has a patient’s consent to send a request to the EHRi system and override the existing consent directives to view a patient’s health information masked for presentation.

Unmask Patient Information* only requests a temporary override to the patient’s consent directives and does not update consent information in the EHRi system other than creating data such as audit logs of who requested the override, the reason, date and location etc. The override to view the requested information only continues until the context of the patient’s health information changes within a POS system session.

(* See EHRi Privacy and Security Conceptual Architecture, Appendix C: The “Lockbox” & Masking of PHI)

EHR Business Requirement reference

This EHR IP is used by the following Clinical Activities:

Clinical Activity Document Id	Name
D03 - CLACT03 - D3 - EHR 3.1.1	Depression assessment
D03 - CLACT03 - D3 - EHR 3.1.2	New family physician

Actors

This EHR IP includes interactions between the following actors:

Actor	Description
Point of Service System (or EHRi system Web Viewer)	The point of service system used by the Health Care Provider (user)
EHRi system	The system that contains the jurisdictional EHR for this patient.

Preconditions

The user is already authenticated and authorized and logged into the EHRi system and the patient has been identified
The service location id and the provider id that requested this process have been established in previous interactions.
The patient event information that is to be unmasked has been uniquely identified
The user has the patient’s consent to override the current consent directives and unmask the requested information for the duration of the POS system session.

Process Steps

User has selected the desired patient’s clinical Event and proceeds with the following steps.

Process Step	POS	EHR Communication Step
User requests to see patient information unmasked.	POS System sends a request to the EHRi system specifying the provider identity, the client identity and the identity of the patient’s information to be unmasked.	EHRCS14_Unmask_Patient_Information (request)
		The IIP Get EHR Workflow Services: Authenticates the user Validates the business rules of the Unmask Patient Information Request request Validates the client id Determines any patient consent rules Locates the requested patient’s event information Initiates and manages the message query to retrieve the patient’s event data from the desired EHRi System repository Applies the appropriate consent override to unmask the data Assembles a response message with the data unmasked
	POS system receives the EHR Communication Step response status and the requested patient information unmasked.	(response)

Issues

Assumptions / Constraints

Notes

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General Info
Name	EHRIP14 - Unmask Patient Inormation
Type	Sequence Diagram