> ## 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.

# Rule Change Feed

> Track payer rule changes, CMS updates, coding changes, and NCCI edits — get notified before they affect your claims

> Healthcare billing rules change constantly. Know before your claims get denied.

The Rule Change Feed tracks every change that affects how you bill, code, and get paid. Subscribe to the rules that matter to your practice and get notified before changes take effect.

**Browse recent changes at [rcintell.com/tools](https://rcintell.com/tools)**

## Why this matters

A payer quietly shortens its timely filing limit from 180 to 90 days. A new prior auth requirement takes effect for imaging. CMS updates the conversion factor. An NCCI edit bundles a procedure pair you bill separately.

Without tracking these changes, you find out when claims start getting denied.

## What the feed tracks

### CMS / Medicare Changes

| Change type              | Frequency                  | Example                         |
| ------------------------ | -------------------------- | ------------------------------- |
| Conversion factor update | Annual (+interim)          | \$32.35 → new rate              |
| RVU changes              | Annual (Jan 1)             | 99213 Work RVU 1.30 → 1.32      |
| GPCI updates             | Annual                     | Manhattan PE GPCI 1.281 → 1.295 |
| New CPT/HCPCS codes      | Annual (Jan 1) + Quarterly | New Category III codes          |
| Deleted codes            | Annual                     | Code retired, use replacement   |
| NCCI edit updates        | Quarterly                  | New code pair bundles           |
| MUE updates              | Quarterly                  | Units per day changes           |
| NCD/LCD changes          | Ongoing                    | New coverage determination      |
| MAC jurisdiction changes | Rare                       | Jurisdiction reassignment       |

### Commercial Payer Changes

| Change type                    | Tracking method         | Example                            |
| ------------------------------ | ----------------------- | ---------------------------------- |
| Timely filing changes          | Policy monitoring       | 180 → 90 day limit                 |
| Prior auth requirement changes | Policy monitoring       | Imaging now requires PA            |
| Fee schedule updates           | Contracted rate changes | Rate adjustment for code group     |
| Network changes                | Provider directory      | New requirements for participation |
| Appeal process changes         | Policy monitoring       | New appeal level or form           |
| COB rule changes               | Policy monitoring       | Updated coordination rules         |

### State Medicaid Changes

| Change type        | Example                      |
| ------------------ | ---------------------------- |
| Rate updates       | FY2027 rate increase for E/M |
| Program changes    | Expanded telehealth coverage |
| Prior auth changes | New PA requirement for DME   |
| Enrollment changes | Provider type requirements   |

### Coding System Changes

| System         | Update cycle     | Tracked changes           |
| -------------- | ---------------- | ------------------------- |
| CPT            | Annual + interim | New/deleted/revised codes |
| HCPCS Level II | Quarterly        | New/deleted/revised codes |
| ICD-10-CM/PCS  | Annual (Oct 1)   | New/deleted/revised codes |
| CDT (dental)   | Annual           | New/deleted/revised codes |

## Example feed entries

```json theme={null}
[
  {
    "id": "chg_2026_cf_update",
    "type": "cms.conversion_factor",
    "severity": "high",
    "effective_date": "2026-01-01",
    "published_date": "2025-11-15",
    "title": "2026 Medicare Conversion Factor: $32.35",
    "summary": "CMS finalized the 2026 MPFS with a conversion factor of $32.35, a 2.9% decrease from the 2025 rate of $33.29.",
    "impact": "All Medicare MPFS payments decrease. Verify contracted payer rates that reference MPFS.",
    "source": "CMS-1784-F",
    "affects": ["all_facilities", "mpfs"]
  },
  {
    "id": "chg_cigna_tf_2026q1",
    "type": "payer.timely_filing",
    "severity": "critical",
    "effective_date": "2026-03-01",
    "published_date": "2026-01-15",
    "title": "Cigna shortens timely filing to 90 days (select plans)",
    "summary": "Cigna commercial plans in TX, FL, CA will enforce 90-day timely filing limit, reduced from 180 days, effective March 1, 2026.",
    "impact": "Claims for Cigna commercial plans in affected states must be submitted within 90 days of date of service.",
    "affects": ["cigna", "TX", "FL", "CA"]
  },
  {
    "id": "chg_ncci_2026q1",
    "type": "coding.ncci_edit",
    "severity": "medium",
    "effective_date": "2026-01-01",
    "published_date": "2025-12-20",
    "title": "Q1 2026 NCCI edit updates — 47 new code pairs",
    "summary": "CMS released Q1 2026 NCCI PTP edits with 47 new code pair bundles. Radiology and surgical sections most affected.",
    "impact": "Review affected code pairs. Some previously separately billable services are now bundled.",
    "source": "CMS NCCI",
    "affects": ["radiology", "surgery", "ncci"]
  }
]
```

## Subscribe to changes

### Pull (supported)

```bash theme={null}
curl "https://api-dev.rcintell.com/v1/data/changes?since=2026-01-01" \
  -H "X-API-Key: kp_test_..."

curl "https://api-dev.rcintell.com/v1/340b/changes?since=2026-01-01" \
  -H "X-API-Key: kp_test_..."

curl "https://api-dev.rcintell.com/v1/policies/changes?since=2026-01-01" \
  -H "X-API-Key: kp_test_..."
```

There is no `POST /v1/webhooks` feed. Agent jobs can still POST to your URL via `callback_url` — see [Agent callbacks](/docs/webhooks).

### RSS / Email

Subscribe to the public RSS feed at `https://rcintell.com/tools/feed.xml` or sign up for email digests (daily or weekly).

## Severity levels

| Level        | Meaning                                   | Example                       |
| ------------ | ----------------------------------------- | ----------------------------- |
| **Critical** | Will cause claim denials if not addressed | Timely filing shortened       |
| **High**     | Payment amount will change                | Conversion factor update      |
| **Medium**   | May affect some claims                    | New NCCI edit pair            |
| **Low**      | Informational                             | Minor code description change |

## Free to browse

The Rule Change Feed is publicly browsable at [rcintell.com/tools](https://rcintell.com/tools). Filtered API access requires an API key.