validar-codigo-medico
Validates ICD-10-CM against the real FY2026 catalog (NCHS/CDC) and CPT by structure/category.
Open source Repository Open in the app JSON README (API)
About
Validates ICD-10-CM against the real FY2026 catalog (NCHS/CDC) and CPT by structure/category.
Details
- Kind
- MCP servers
- Topic
- No topic detected
- Publisher
- encodi
- Origin
- official
- Category
- ferramentas
- Transport
- http
- Version
- 1.0.1
- Last push
- 2026-08-11T17:29:40Z
- Repository state
- ativo
- Language
- TypeScript
- License
- MIT
- Added
- 2026-08-29 03:02:45
- Updated
- 2026-08-29 03:02:45
- Origin id
io.github.encodi/validar-codigo-medico
README
# validar-codigo-medico
[](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.