Using 3 XDS Affinity Domains at the Connectathon At past North American connectathons, we chose to test with one Affinity Domain, with one Patient ID assigning authority accepted by all XDS.b Registries. – One AD was easier to test (less switching) – But this was not as effective for also testing XCA In April-2010 we had three Affinity Domains for the European Connectathon, and we will follow that model for NA2011.

Using 3 XDS Affinity Domains at the Connectathon (Part 2) Each Affinity Domain has its own (different) ‘master’ assigning authority for Patient IDs (eg … , … , ) For ease-of-reference, we call these the ‘blue’, ‘red’, and ‘green’ domains Each XDS.b Registry is assigned to one of these 3 domains for the week. – The Registry’s Patient ID feed must have the Assigning Authority OID for the Registry’s domain – All documents submitted must use the proper Assigning Authority OID in the Patient ID in the document metatdata Affinity domain codes (from codes.xml) are the same across all 3 affinity domains – A simplification to ease testing

XCA GW Registry Repos assigning authority Patient ID feed Patient ID feed Patient ID feed Sources PIX MGR

Three Assigning Authority - effect on XDS actors ) XDS.b Registries: – A given Registry is assigned only one of these values. It only accepts Patient Feeds and Documents with Patient IDs from this Assigning Authority. This value remains the same for the whole week. – We have ~24 Registries for NA2011. That means that eight of the Registries will be assigned to accept a Patient ID with the … value, eight are assigned the … value, etc. This is no different than what we have done up until now with multiple Registries accepting the same assigning authority value. XDS.b Repositories: – A Repository shouldn’t care if it has stored documents for patients with different assigning authority values; the Repository can keep its database and be paired with different Registries during the week with no adverse effect. XDS.b Sources & Consumers / XDS-i.b Img Doc Source & Consumer: – The burden for multiple assigning authority domains lies here. – Sources will have to pay close attention to Assigning Authority of the Registry associated with the Doc Repository to which they are submitting a document. The Patient ID in the document metadata must contain the Assigning Authority for your Registry – Consumers will have to know the Assigning Authority value of the Registry it is querying.

Three Assigning Authority – effect on HL7 actors PIX/PIXv3 Patient Identity Sources: – For tests driven by XDS.b and XDS-I.b, we will use a tool (Geneva) to serve as the Patient Identity Source; it is able to send demographics with red, blue, green assigning authority. – As usual, for PIX peer-to-peer tests, each PIX Patient ID Source actor will have its own assigning authority value assigned to them for the connectathon. PIX/PIXv3 Managers: –Will receive a feed for all patients created by the Patient Identity Source tool (Geneva) used for XDS.b testing (including red, blue, green assigning authority values), as well as from vendors’ Patient Identity Source actors. PIX/PIXv3 Consumers: – Are already required to specify the affinity domain in their PIX Query; they may optionally specify ‘what domain returned’, to query a PIX Manager for a Patient ID in the domain they want PDQ/PDQv3 Suppliers: – As usual, for PDQ peer-to-peer tests, each PDS will have its own assigning authority value assigned to them for the connectathon.

Sample: patient ID Assigning Authority for XDS.b Registries to accept An electronic copy of the NA2011 Registry OID Assigning Authorities: XDS.b Document Registries Patient ID Assigning Authority to accept in your HL7v2 or v3 feed ALERT OTHER_ALERT CareEvolution OTHER_CareEvolution etc.. Allscripts OTHER_Allscripts_Helios Carefx XDSb_REG_Carefx etc… Axolotl XDSab_REG_Ax CSH PACS_CSH_0 etc…

Connectathon demographics We distribute patient demographics prior to the connectathon to be pre-loaded on XDS.b Registry, PDQ Supplier and PIX Manager systems – We have 3 sets – demographics-red, demographics-blue, demographics- green – PIX Managers load all demographics – PDQ Suppliers load demographics marked for PDQ tests – XDS.b Registries load demographics marked for XDS tests. There are red/blue/green versions of demographics that contain the same patient name/DOB/addr for these patients, but different ID values for each of the 3 assigning authorities. The PIX Managers should recognize these as the same person. An electronic copy of the NA2011 patient demographics is here:

Multiple domains & XCA & XCPD XCA Initiating and Responding Gateways: – Connectathon Monitors assigned to XCA will help Gateways “plug in” to this infrastructure – Those Gateways that support the ‘XDS affinity domain’ option can be associated with one of the affinity domains – They will either learn about patients by accepting a Patient ID feed, or will do it some other non-IHE way – A few Gateways will also support XCPD, and can test this as well

Questions? Contact Lynn Felhofer