# CMS LCD Policy Revision Ledger (`nexgenwatch/cms-policy-revision-ledger`) Actor

One structured revision record per filed LCD revision-history entry from the official CMS Medicare Coverage Database — the LCD policy id, version, revision number, revision effective date, and the revision description (HTML stripped).

- **URL**: https://apify.com/nexgenwatch/cms-policy-revision-ledger.md
- **Developed by:** [NexGen Watch](https://apify.com/nexgenwatch) (community)
- **Categories:** Automation, Lead generation, Developer tools
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $13.40 / 1,000 policy revision records

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## 🔔 CMS LCD Policy Revision Ledger

One structured **revision record per filed LCD revision-history entry** from the official CMS Medicare
Coverage Database — the LCD policy id, version, revision number, revision effective date, and the
revision description (HTML stripped), joined to the policy title where the policy is in the current
snapshot. Built for coverage-policy, reimbursement, and compliance teams who need an auditable ledger of
how Local Coverage Determinations have changed over time.

**Differentiation:** most tools dump the current LCD text; this ledger extracts the *filed revision
history* as discrete facts, keyed on a source-native composite id (`lcd_id:version:rev_num`), deduplicated,
with CPT/HCPCS descriptors excluded and the CMS licence carried on every row.

Output is one `cms_lcd_revision` row per result; billing is pay-per-event, the value event being one policy revision record (a $0.02 start fee per run, then $0.02 per policy revision record). Source: downloads.cms.gov, www.cms.gov.

No login, no API key and no CAPTCHA solving are involved: the source is read logged-out with an identified contact User-Agent.

### 📊 Sample Output

[![CMS LCD Policy Revision Ledger sample output — a table of real policy revision record rows (lcd_id, lcd_version, rev_hist_num, rev_hist_date) from run E8q58ZXtnF9wdToeG on build 0.1.9](https://api.apify.com/v2/key-value-stores/80Y7h3rmVN5CWK7Mw/records/cms-policy-revision-ledger-sample)](https://apify.com/nexgenwatch/cms-policy-revision-ledger?fpr=2ayu9b)

Real rows from run `E8q58ZXtnF9wdToeG` on build 0.1.9 (2026-09-19), the same input as the Quick start below — every value is as the source published it (emails masked, long text shortened):

| lcd_id | lcd_version | rev_hist_num | rev_hist_date | revision_description | license |
|---|---|---|---|---|---|
| 32553 | 4 | 1 | 2015-10-01 | R1 Revision Effective: N/A Revision Explanation: Accepted revenue code | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 5 | 2 | 2015-10-01 | R2 Revision Effective: N/A Revision Explanation: Annual review no chan | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 6 | 3 | 2015-10-01 | R3 Revision Effective: 10/01/2015 Revision Explanation: Icd-10 code in | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 7 | 4 | 2015-10-01 | R4 Revision Effective: 10/01/2015 Revision Explanation: group 2 had a  | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 8 | 5 | 2015-10-01 | R5 Revision Effective: 10/01/2015 Revision Explanation: Added J30.81 t | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 9 | 6 | 2015-10-01 | R6 Revision Effective: N/A Revision Explanation: annual review no chan | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 10 | 7 | 2015-10-01 | R7 Revision Effective: N/A Revision Explanation: Annual review no chan | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |
| 32553 | 11 | 8 | 2015-10-01 | R8 Revision Effective: N/A Revision Explanation: Annual review no chan | CMS Medicare Coverage Database — U.S. Government public data; CPT is c |

The run finished with the status message: `CAPPED: delivered 50 of 7832 unique rows (maxRecords=50). billable=50`

### ✅ What you get

Each row is flat JSON with these fields (from the dataset schema and the sample run; a field the source does not publish for a given row is `null`):

- `record_type` (string/null) — e.g. `cms_lcd_revision`
- `lcd_id` (string/null) — e.g. `32553`
- `lcd_version` (string/null) — e.g. `4`
- `display_id` (string/null) — null in every sample row
- `policy_title` (string/null) — null in every sample row
- `rev_hist_num` (string/null) — e.g. `1`
- `rev_hist_date` (string/null) — e.g. `2015-10-01`
- `revision_description` (string/null) — e.g. `R1 Revision Effective: N/A Revision Explanation: Accepted revenue code descripti`
- `source` (string/null) — e.g. `cms-policy-revision-ledger`
- `release_date` (string/null) — null in every sample row
- `source_url` (string/null) — e.g. `https://www.cms.gov/medicare-coverage-database/`
- `observed_at` (string/null) — e.g. `2026-09-19T00:27:52Z`
- `license` (string/null) — e.g. `CMS Medicare Coverage Database — U.S. Government public data; CPT is copyright A`
- `attribution` (string/null) — e.g. `U.S. Centers for Medicare & Medicaid Services, Medicare Coverage Database (https`
- `terminal` (string/null) — null in every sample row
- `reported_total` (string/integer/null) — null in every sample row
- `raw_seen` (string/integer/null) — null in every sample row
- `duplicates` (string/integer/null) — null in every sample row
- `unique_found` (string/integer/null) — null in every sample row
- `delivered` (string/integer/null) — null in every sample row
- `scope` (string/null) — null in every sample row
- `note` (string/null) — null in every sample row

**✅ What you get**

- `record_type` (string/null) — e.g. `cms_lcd_revision`
- `lcd_id` (string/null) — e.g. `32553`
- `lcd_version` (string/null) — e.g. `4`
- `display_id` (string/null) — null in every sample row
- `policy_title` (string/null) — null in every sample row
- `rev_hist_num` (string/null) — e.g. `1`
- `rev_hist_date` (string/null) — e.g. `2015-10-01`
- `revision_description` (string/null) — e.g. `R1 Revision Effective: N/A Revision Explanation: Accepted revenue code descripti`
- `source` (string/null) — e.g. `cms-policy-revision-ledger`
- `release_date` (string/null) — null in every sample row
- `source_url` (string/null) — e.g. `https://www.cms.gov/medicare-coverage-database/`
- `observed_at` (string/null) — e.g. `2026-09-19T00:07:37Z`
- `license` (string/null) — e.g. `CMS Medicare Coverage Database — U.S. Government public data; CPT is copyright A`
- `attribution` (string/null) — e.g. `U.S. Centers for Medicare & Medicaid Services, Medicare Coverage Database (https`
- `terminal` (string/null) — null in every sample row
- `reported_total` (string/integer/null) — null in every sample row
- `raw_seen` (string/integer/null) — null in every sample row
- `duplicates` (string/integer/null) — null in every sample row
- `unique_found` (string/integer/null) — null in every sample row
- `delivered` (string/integer/null) — null in every sample row
- `scope` (string/null) — null in every sample row
- `note` (string/null) — null in every sample row

**✅ What you get**

- `record_type` (string/null) — e.g. `cms_lcd_revision`
- `lcd_id` (string/null) — e.g. `32553`
- `lcd_version` (string/null) — e.g. `4`
- `display_id` (string/null) — null in every sample row
- `policy_title` (string/null) — null in every sample row
- `rev_hist_num` (string/null) — e.g. `1`
- `rev_hist_date` (string/null) — e.g. `2015-10-01`
- `revision_description` (string/null) — e.g. `R1 Revision Effective: N/A Revision Explanation: Accepted revenue code descripti`
- `source` (string/null) — e.g. `cms-policy-revision-ledger`
- `release_date` (string/null) — null in every sample row
- `source_url` (string/null) — e.g. `https://www.cms.gov/medicare-coverage-database/`
- `observed_at` (string/null) — e.g. `2026-09-18T21:23:52Z`
- `license` (string/null) — e.g. `CMS Medicare Coverage Database — U.S. Government public data; CPT is copyright A`
- `attribution` (string/null) — e.g. `U.S. Centers for Medicare & Medicaid Services, Medicare Coverage Database (https`
- `terminal` (string/null) — null in every sample row
- `reported_total` (string/integer/null) — null in every sample row
- `raw_seen` (string/integer/null) — null in every sample row
- `duplicates` (string/integer/null) — null in every sample row
- `unique_found` (string/integer/null) — null in every sample row
- `delivered` (string/integer/null) — null in every sample row
- `scope` (string/null) — null in every sample row
- `note` (string/null) — null in every sample row

### ⚙️ Sample inputs

**1. Quick start — the Store example (this is what the sample above came from)**

```json
{
  "lcdIds": [],
  "maxRecords": 50
}
```

The sample run charged exactly: 4 × $0.02 apify-actor-start + 50 × $0.02 policy_revision_record = **$1.08** on the Free tier — every delivered row was billed.

**2. A smaller, narrowed run**

```json
{
  "lcdIds": [],
  "maxRecords": 5
}
```

Caps the run at 5 rows — about $0.12 on the Free tier ($0.02 start + 5 × $0.02).

**3. A full-size run**

```json
{
  "lcdIds": [],
  "maxRecords": 2500
}
```

Up to 2500 rows (the schema default for `maxRecords`) — about $50.02 on the Free tier ($0.02 start + 2500 × $0.02) if the source has that many.

### 🧾 JSON sample record

One real record from run `E8q58ZXtnF9wdToeG`, exactly as it lands in the dataset (emails masked, long text shortened):

```json
{
  "record_type": "cms_lcd_revision",
  "lcd_id": "32553",
  "lcd_version": "4",
  "display_id": null,
  "policy_title": null,
  "rev_hist_num": "1",
  "rev_hist_date": "2015-10-01",
  "revision_description": "R1 Revision Effective: N/A Revision Explanation: Accepted revenue code description changes.",
  "source": "cms-policy-revision-ledger",
  "release_date": null,
  "source_url": "https://www.cms.gov/medicare-coverage-database/",
  "observed_at": "2026-09-19T00:27:52Z",
  "license": "CMS Medicare Coverage Database — U.S. Government public data; CPT is copyright American Medical Association (CPT/HCPCS long/short descriptors are excluded from this output).",
  "attribution": "U.S. Centers for Medicare & Medicaid Services, Medicare Coverage Database (https://www.cms.gov/medicare-coverage-database/)"
}
```

### 🔧 How it works

**Source.** The actor reads downloads.cms.gov, www.cms.gov — endpoints: `https://downloads.cms.gov/medicare-coverage-database/downloads/exports/current_lcd.zip`, `https://www.cms.gov/medicare-coverage-database/`. Public pages and feeds only; nothing behind a login.

**Transport.** Plain HTTPS from the Apify platform, no proxy. robots.txt is read first and a disallowed path is never fetched. Every request carries an identified contact User-Agent. Pacing: `CRAWL_DELAY`=0.0.

**Terminal states.** A run ends NORMAL, CAPPED (your cap was reached), PARTIAL (something was withheld and the message says what), GENUINE_EMPTY (the source was read and truly had nothing in scope) or BLOCKED (the source refused or changed shape — the run FAILS loud and bills nothing). A zero-row run is never reported as a silent success.

**Charging.** Each policy revision record is charged at the moment it is pushed (`policy_revision_record`); a row that fails to charge is not delivered, so the dataset count always equals the charged count.

**🔧 How it works**

**🔧 How it works**

**Source**

The official CMS export `current_lcd.zip` from `downloads.cms.gov`. The `.mdb` member is **not** read — the
CSV members are parsed (`lcd_x_revision_history.csv`, joined to `lcd.csv`), with header layout canaries
that fail loud (unbilled) on any shell body, header drift, or zero-parse.

**Compliance & licence**

- **CPT/HCPCS descriptor fields are excluded by position** and never emitted. CPT is copyright the American
  Medical Association; only codes/ids that CMS publishes as public data are carried, and descriptor text is dropped.
- Every record carries the CMS licence notice (`license`) and attribution (`attribution`):
  *U.S. Centers for Medicare & Medicaid Services, Medicare Coverage Database.*

**What is not done.** No login, no cookie or CAPTCHA bypass, no private or personal-account data, no browser automation.

### 💰 Pricing example

| Event | Free | Bronze | Silver | Gold |
|---|---|---|---|---|
| Actor Start (`apify-actor-start`) | $0.02 | $0.02 | $0.02 | $0.02 |
| Policy revision record (`policy_revision_record`) | $0.02 | $0.018 | $0.016 | $0.0134 |

Worked at the live Free-tier price:

- 8 policy revision records: $0.02 start + 8 × $0.02 = **$0.18**
- 25 policy revision records: $0.02 start + 25 × $0.02 = **$0.52**
- 2500 policy revision records: $0.02 start + 2500 × $0.02 = **$50.02**

A run that delivers zero rows charges the $0.02 start fee only. A BLOCKED run (source refused) fails loud and charges no value event. The start fee is charged once per GB of run memory; the default run memory is 4096 MB.

Yield on the sample run: `CAPPED: delivered 50 of 7832 unique rows (maxRecords=50). billable=50`. `maxRecords` is a hard ceiling on what is delivered and billed, never a target.

### ⚖️ Legal & ToS

This actor reads public, logged-out pages and feeds published by downloads.cms.gov, www.cms.gov. It collects only what the source publishes to any visitor, keeps to the source's robots rules (checked on every run), identifies itself with a contact User-Agent, and does not access accounts, private data or anything behind authentication. Use the output in line with the source's terms and your local law; the intended use is B2B research and monitoring.

### ❓ FAQ

**Q: Do I need an API key or a login?**\
A: No. The source (downloads.cms.gov, www.cms.gov) is read logged-out; the input schema has no key field and the actor carries no secrets.

**Q: Why did my run return 0 rows?**\
A: Read the run's status message. GENUINE_EMPTY means the source was read and had nothing in scope for your input; BLOCKED means the source refused and the run failed without billing a value event — retry later or narrow the input. A zero-row run bills the start fee only.

**Q: How many rows can one run return?**\
A: Up to `maxRecords` (default 2500). Raise the cap for a bigger run; you pay per delivered row.

**Q: How fresh is the data?**\
A: Every run reads the source live at run time; nothing is cached between runs. Put it on a schedule for a continuous feed.

**Q: What formats can I export?**\
A: The dataset downloads as JSON, CSV, Excel, XML or RSS from the run's Dataset tab or the Apify API, and any run can push to a webhook or integration.

**Q: How is this different from the other NexGen Watch actors actors?**\
A: Same output shape and billing model; this one covers downloads.cms.gov, www.cms.gov. The siblings under **Related Actors** cover the other sources or slices — run several on one schedule for a combined feed.

**Q: Are there rate limits?**\
A: The actor paces itself against the source (`CRAWL_DELAY`=0.0) and honours its robots rules; there is no per-buyer limit beyond your Apify plan's concurrency.

### 🆘 Troubleshooting

- **Run FAILED with BLOCKED** → the source refused the request or changed its page shape → nothing was billed beyond the start fee; retry after a while, and if it persists open an Issue with the run id.
- **Status says CAPPED** → your cap (`maxRecords`) was reached → raise it for a bigger run.
- **Input validation error on start** → a field is outside the schema's allowed values → start from the Quick start block and change one field at a time.
- **Run TIMED-OUT** → a very wide request on a slow day → raise the run timeout in Run options or narrow the input; what was delivered before the timeout is still in the dataset.

### 🔗 Related Actors

- [CMS Local Coverage Determinations Change Scraper](https://apify.com/nexgenwatch/cms-lcd-weekly-change-feed?fpr=2ayu9b) — Scrape Medicare Local Coverage Determination (LCD) changes: one record per policy added, changed or removed between the last CMS export and the curre…
- [CMS MAC Policy Jurisdiction Map](https://apify.com/nexgenwatch/cms-mac-policy-jurisdiction-map?fpr=2ayu9b) — One structured record per (LCD policy × administering MAC contractor × covered jurisdiction state) from the official CMS Medicare Coverage Database
- [CMS Medicare Coverage Policy Master](https://apify.com/nexgenwatch/cms-medicare-coverage-policy-master?fpr=2ayu9b) — One structured policy_record per coverage policy across all three CMS document families — Local Coverage Determinations (LCD), Articles, and National…
- [Colorado Business Entities Master](https://apify.com/nexgenwatch/colorado-business-entities-master?fpr=2ayu9b) — One master record per Colorado business entity (id, name, status, type, formation jurisdiction, formation date, principal + mailing address, register…
- [Czech ARES Company Registry](https://apify.com/nexgenwatch/czech-ares-company-registry?fpr=2ayu9b) — One record per requested ICO — company name, legal form, DIC, registered address, NACE and last-updated date from the official register. Honest scope…
- [DC Basic Business Licenses](https://apify.com/nexgenwatch/dc-basic-business-licenses?fpr=2ayu9b) — One record per DC Basic Business License (category/type, status, effective/expiry dates, premise address, entity + owner/agent names, ward) from the…
- 🏢 **About NexGenData** — NexGen Watch is NexGenData's fleet of more than 300 public data actors built on official sources, pay-per-result. Browse the catalog at [apify.com/nexgenwatch](https://apify.com/nexgenwatch?fpr=2ayu9b).

### ⭐ Found this useful?

If this actor saved you a manual check, a quick **[review on the Apify Store](https://apify.com/nexgenwatch/cms-policy-revision-ledger?fpr=2ayu9b)** helps other teams find it. Feature request or a source that changed? Open it from the **Issues** tab — every one is read.

# Actor input Schema

## `lcdIds` (type: `array`):

Restrict to these LCD policy ids (e.g. 33252). Empty = all policies (capped by maxRecords). No patient identifiers are accepted.

## `dateFrom` (type: `string`):

Only revisions with an effective date on/after this date.

## `maxRecords` (type: `integer`):

Max revision records delivered (buyer bound; one charge per delivered record). Hard-capped at 2500.

## `userAgent` (type: `string`):

Override the transparent crawler UA.

## `searchText` (type: `string`):

Optional. Keep only rows where any field contains this text (case-insensitive, substring). Applied after the source is read and BEFORE the maxRecords cap, so the cap counts matches and only delivered matches are billed. Zero matches = EMPTY_SELECTION, nothing charged beyond the start fee.

## `fieldMatch` (type: `object`):

Optional. {"column": "text"} keeps rows whose named output column contains the text (case-insensitive); a list of texts means any of them; several columns must all match. Column names are the dataset fields shown in the sample output. Applied BEFORE the maxRecords cap and before billing.

## Actor input object example

```json
{
  "lcdIds": [],
  "maxRecords": 50
}
```

# Actor output Schema

## `results` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "lcdIds": [],
    "maxRecords": 50
};

// Run the Actor and wait for it to finish
const run = await client.actor("nexgenwatch/cms-policy-revision-ledger").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "lcdIds": [],
    "maxRecords": 50,
}

# Run the Actor and wait for it to finish
run = client.actor("nexgenwatch/cms-policy-revision-ledger").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "lcdIds": [],
  "maxRecords": 50
}' |
apify call nexgenwatch/cms-policy-revision-ledger --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,nexgenwatch/cms-policy-revision-ledger"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/NoLi0HvHeJkhnCOrs/builds/5zA91z544ws1ZMQyV/openapi.json