RHSES Standard Hub

DOCUMENT REF: RHSES-103

TITLE: Financial Model and Shared Services Architecture

Status: Normative

1.0 Standardized Revenue Distribution Waterfall

1.1 Waterfall Logic

The Entity shall programmatically enforce a revenue distribution model for all "Program Income" generated via the PRB.

Tier 1 (Rebate/Savings): 70% (±5%) shall be returned to the purchasing member (Hospital/Clinic) to offset OpEx.

Tier 2 (Equity Reinvestment): 20% (±5%) shall be routed to the Local Health Equity Fund (HEF).

Tier 3 (Operational Sustainment): 10% (±2%) shall be retained by the PRB for administration, audit, and AI infrastructure costs.

1.2 Variance Analysis

Any deviation from the defined Waterfall Logic greater than 1.0% variance per quarter must trigger a Corrective Action Plan (CAP).

2.0 Interoperability and Shared Services

2.1 Tele-Specialist Hub Specifications

The Hub must utilize HL7 FHIR (Fast Healthcare Interoperability Resources) for all patient data exchange.

2.1.1 US Core Data for Interoperability (USCDI): The platform must support the current version of USCDI for patient demographic and clinical data exchange.

2.1.2 AuditEvent Logging: All data access events must be logged using the FHIR AuditEvent resource, capturing: Who (Agent), What (Entity), When (Timestamp), and Why (Purpose of Use).

2.2 Centralized Billing Hub

2.2.1 Scalability: The billing architecture must be multi-tenant, allowing distinct rural EMS and clinic entities to coexist on a single instance while maintaining strict HIPAA data segregation.