Unattributed Code Systems

• https://fhir.athena.io/athenacoreext/CodeSystem/ah-identifier-type

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Copyright and Registered Trademark Uses

• IG © 2021+ athenahealth. Package ig-athena-core-ext#5.10.2 based on FHIR 4.0.1. Generated 2026-05-26 Links: Table of Contents | QA Report ( src )
• hl7.fhir.us.hai: Healthcare Associated Infection Implementation Guide ®© HL7 | CC0 ( src )
• Athena Core Implementation Guide - Local Development build (v5.10.2) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions ( src )
• Code of Federal Regulation 21CFR§1271.290(c) ( src )
• Every brand is identified by a single numeric Brand ID and is associated to a specific practice in athenahealth. It is represented as a FHIR® Organization having an Organization.id defined by a-{PID}.Brand-{ID} where {PID} is the Practice ID and {ID} is the Brand ID. ( src )
• Every chart sharing group is identified by a single numeric Chart Sharing Group ID and is associated to a specific practice in athenahealth. It is represented as a FHIR® Organization having an Organization.id defined by a-{PID}.CSG-{ID} where {PID} is the Practice ID and {ID} is the Chart Sharing Group ID. ( src )
• Every department is identified by a single numeric Department ID and is associated to a specific practice in athenahealth. It is represented as a FHIR® Organization having an Organization.id defined by a-{PID}.Department-{ID} where {PID} is the Practice ID and {ID} is the Department ID. ( src )
• Every practice is identified by a single numeric Practice ID within athenahealth. It is represented as a FHIR® Organization having an Organization.id defined by a-1.Practice-{PID} where {PID} is the Practice ID. ( src )
• Every provider group is identified by a single numeric Provider Group ID and is associated to a specific practice in athenahealth. It is represented as a FHIR® Organization having an Organization.id defined by a-{PID}.PG-{ID} where {PID} is the Practice ID and {ID} is the Provider Group ID. ( src )
• FHIR® Version R4 ( src )
• There are examples where a medication request may include the option of an oral dose or an Intravenous or Intramuscular dose. For example, "Ondansetron 8mg orally or IV twice a day as needed for nausea" or "Compazine® (prochlorperazine) 5-10mg PO or 25mg PR bid prn nausea or vomiting". In these cases, two medication requests would be created that could be grouped together. The decision on which dose and route of administration to use is based on the patient's condition at the time the dose is needed. ( src )

External References

Type	Reference	Content
web	snomed.info	90734009
web	snomed.info	424572001
web	www.athenahealth.com
web	snomed.info	90734009
web	snomed.info	424572001
web	docs.athenahealth.com	These Postman collections are created for athenahealth’s FHIR R4 APIs accessed via the public Apigee API URLs. To use these Postman collections, you will need to register with the athenahealth Developer Portal ( see ) to obtain your credentials.

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