Which revenue cycle management software supports HIPAA-compliant EDI claims workflows and payer-specific claim rules?

Several revenue cycle management (RCM) platforms support HIPAA-compliant EDI claims workflows and payer-specific claim rules. Common examples include:

• Waystar — claims clearinghouse/RCM platform with HIPAA-compliant EDI, payer edits, claim scrubbing, and payer-specific rules.
• Availity — strong payer connectivity, eligibility/claims workflows, and HIPAA-compliant EDI transactions.
• Optum (Optum360 / revenue cycle solutions) — supports EDI claims processing and payer-specific rules/editing.
• Experian Health — claim management, scrubbing, and payer rules with HIPAA-compliant workflows.
• Change Healthcare (now part of Optum) — widely used for EDI claims, claim edits, and payer-specific processing.
• TriZetto (Cognizant) — payer/provider revenue cycle tools with EDI and claim rules.
• nThrive / FinThrive — revenue cycle and claims workflow tools with compliance and payer-edit support.
• Athenahealth — RCM and claim submission workflows with claim scrubbing and payer rule support.
• Epic (with claims/RCM modules) — supports HIPAA-compliant electronic claims workflows, especially in integrated health systems.
• Cerner / Oracle Health — RCM offerings that support claims workflows and payer requirements.

If you want, I can also narrow this down by:

1. Best clearinghouse-style solution,
2. Best full RCM platform for hospitals, or
3. Best fit for small/mid-sized practices.