> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rcintell.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> New features, improvements, and fixes to the RCI platform.

## v0.1.0 — Public Launch

<Info>
  **March 2026** — RCI is now available for public use.
</Info>

### Knowledge Resolution Engine

* **6-layer knowledge graph** — Resolve billing context from a single CCN: location (L1), facility type (L2), care setting (L3), payer rules (L4), service group (L5), and service-level payment (L6).
* **Billing guide generation** — Get the correct billing form, type of bill, modifiers, and warnings for any facility/service combination.
* **Payment calculation** — GPCI-adjusted Medicare MPFS payment estimates with full RVU breakdowns.

### AI Agents

* **Code research agent** — CPT/HCPCS research with documentation requirements, coding guidelines, and modifier rules.
* **Medical necessity agent** — ICD-10/CPT pairing validation with LCD/NCD policy analysis.
* **Denial resolution agent** — CARC/RARC interpretation with appeal letter generation and supporting evidence.
* **SENTINEL audit** — Every agent execution scored for quality and security with green/yellow/red tiers.

### NCCI Edits

* **MUE lookups** — Medically Unlikely Edits for practitioner, hospital outpatient, and DME settings.
* **PTP edits** — Procedure-to-procedure edits for practitioner and hospital settings.
* **Add-on code validation** — Verify primary/add-on code pairings.

### NPI Search

* **Provider lookup** — Search the NPPES registry by name, NPI, taxonomy, or location.
* **Provider detail** — Full provider profile with addresses, taxonomies, and identifiers.

### Platform

* **Multi-tenant architecture** — Full data isolation with per-API-key rate limiting.
* **API key authentication** — Scoped API keys with `knowledge`, `agents`, `audit`, and `admin` permissions.
* **Structured logging** — Every request logged with request ID, tenant context, and response metrics.
* **OpenAPI documentation** — Full interactive API reference at [docs.rcintell.com/api-reference](/api-reference).

***

Have a feature request? Email [support@rcintell.com](mailto:support@rcintell.com).