# validar-codigo-medico [Health: Active]

**Category:** 💻 Developer Tools  
**Repository:** https://github.com/encodi/validar-codigo-medico  
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**Directory Page:** https://allmcps.com/mcp/validar-codigo-medico

## Description
Valida ICD-10-CM contra catalogo real FY2026 (NCHS/CDC) y CPT por estructura/categoria.

## Claude Desktop Quick Installation
Heuristic fallback — verify the package name and runner against the repository README before running it. Uses `npx` (confidence: low):

```json
"mcpServers": {
  "validar-codigo-medico": {
    "command": "npx",
    "args": ["-y","validar-codigo-medico"]
  }
}
```

## Documentation & README

# validar-codigo-medico

[![validar-codigo-medico MCP server](https://glama.ai/mcp/servers/encodi/validar-codigo-medico/badges/score.svg)](https://glama.ai/mcp/servers/encodi/validar-codigo-medico)

Remote MCP server (Cloudflare Workers) with one tool that validates medical codes against real data:

- **`validate_medical_code`** — `system: "icd10"` does a real lookup against the official **billable ICD-10-CM** code catalog (FY2026, [NCHS/CDC](https://ftp.cdc.gov/pub/health_statistics/nchs/publications/ICD10CM/2026/), public domain as a work of the U.S. government) and returns the official short description. `system: "cpt"` validates the **real structure** of a CPT code (Category I: 5 digits; Category II: 4 digits + `F`; Category III: 4 digits + `T`) and estimates its area by public numeric range — it **doesn't** include per-code descriptions, because the CPT catalog is owned by the AMA and requires a paid license (it can't be redistributed).

No database, no persistent state between calls: each call builds a fresh `McpServer` (see `createServer()` in `src/index.ts`). The ICD-10-CM catalog (~6MB, 74,719 codes) is bundled into the Worker itself as static data (`src/tools/data/icd10cm.ts`) and parsed once per isolate into an in-memory `Map` — see `src/tools/codigoMedico.ts`.

## Why CPT has no descriptions

The CPT (Current Procedural Terminology) description catalog is owned by the American Medical Association and requires a paid license to redistribute its content — unlike ICD-10-CM, which is a work of the U.S. government and therefore public domain. That's why this tool validates a CPT code's **real format** (regex + numeric range, publicly available information about the code's structure) but doesn't offer the procedure's description: that requires an AMA-licensed codebook.

## Billing (x402)

Charges per call via [x402](https://x402.org) — real USDC payment on **Base mainnet**, against the Coinbase Developer Platform (CDP) facilitator. The payment travels inside the MCP JSON-RPC itself (`_meta`), not as an HTTP header; see `src/payments.ts`.

| Tool | Price |
|---|---|
| `validate_medical_code` | $0.02 USDC |

An unpaid `tools/call` returns `isError: true` with the `accepts` (network, amount, `payTo`) the client needs to pay and retry — not an unexplained exception.

## Structure

```
src/
  index.ts             # registers the tool in the McpServer and exposes the MCP HTTP handler
  payments.ts          # x402 billing on Base mainnet via the CDP facilitator
  tools/
    codigoMedico.ts       # pure logic for validate_medical_code (testable without Workers)
    codigoMedico.test.ts
    data/
      icd10cm.ts          # bundled FY2026 ICD-10-CM catalog (generated, do not edit by hand)
scripts/
  dev-node.ts           # dev server that runs the handler in plain Node, no wrangler
  gen-icd10-data.mjs    # regenerates tools/data/icd10cm.ts from a new CMS/NCHS order file
```

## Updating the ICD-10-CM catalog

When NCHS publishes a new version (new fiscal year or addenda):

1. Download the "Code Descriptions" zip from `https://ftp.cdc.gov/pub/health_statistics/nchs/publications/ICD10CM/<YEAR>/`.
2. Unzip it and locate `icd10cm-codes-<YEAR>.txt`.
3. `node scripts/gen-icd10-data.mjs <path-to-txt> src/tools/data/icd10cm.ts`.

## Running it locally

⚠️ **Note on `wrangler dev`**: the real Cloudflare Workers runtime (`workerd`) requires **macOS 13.5+**. If your Mac has an older version, `wrangler dev` (and `npm run dev`) will fail. This project includes a plain-Node shim that runs the exact same `fetch()` handler without needing `workerd`.

### 1. Install dependencies

```bash
npm install
```

### 2. Run the unit tests

```bash
npm test
```

### 3a. If your wrangler dev works (macOS 13.5+, Linux, Windows)

```bash
npm run dev
```

### 3b. If `wrangler dev` fails because of the macOS version

```bash
npm run dev:node
```

Starts at `http://localhost:8787/mcp`, reading CDP credentials from `~/.mcp-tools-factory-credentials.env` (shared across all tools in this factory).

### 4. Test with curl

```bash
# 1) initialize
curl -s -X POST http://localhost:8787/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"curl-test","version":"0.0.1"}}}'

# 2) tools/list
curl -s -X POST http://localhost:8787/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/list","params":{}}'

# 3) tools/call — validate_medical_code (ICD-10-CM)
curl -s -X POST http://localhost:8787/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"validate_medical_code","arguments":{"system":"icd10","codes":["A00.0","Z21","does-not-exist"]}}}'
```

Responses come as Server-Sent Events (`event: message` + `data: {...}`); the `data:` line is the usual JSON-RPC response.

## Deploy and listings

Deployed at `https://validar-codigo-medico.encodari.workers.dev/mcp` (Cloudflare Workers). Published on the [official MCP registry](https://registry.modelcontextprotocol.io), [Smithery](https://smithery.ai), [mcp.so](https://mcp.so), and with an open PR to [awesome-mcp-servers](https://github.com/punkpeye/awesome-mcp-servers).

## What it doesn't do (yet)

- Doesn't include per-code CPT descriptions (see "Why CPT has no descriptions" above).
- Charges on Base mainnet with real money. To switch back to testnet (Base Sepolia, `eip155:84532`) during development, change `NETWORK` in `src/payments.ts`.
- No database or persistent state between calls (beyond the billing config and the ICD-10-CM catalog Map, cached in memory per isolate).
- Not medical or billing advice: this is a structural/catalog validation, not a substitute for a certified professional coder.