Verify and search ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries). Pass code (with or without the dot, e.g. E11.9 or E119) to confirm the code exists and list its more-specific child codes, or q to keyword-search code descriptions (e.g. "type 2 diabetes neuropathy"). Optional billable_only=true restricts results to codes valid for claim submission; limit caps results (1-50, default 10). Returns a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data: CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. Use to confirm diagnosis codes are real and current before placing them in claims, prior authorizations, or clinical documents.
/api/medical/icd10PAYMENT-SIGNATURE.The ICD-10 API verifies and searches ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries) — built to stop agents and LLMs from inventing codes.
Pass a code (with or without the dot, e.g. E11.9 or E119) to confirm it exists and list its more-specific child codes, or pass q to keyword-search descriptions like "type 2 diabetes neuropathy". Optional billable_only restricts results to codes valid for claim submission. Responses include a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data is CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. No API key — pay per call with x402.
| Name | Type | Description |
|---|---|---|
code | string | ICD-10-CM code to verify, with or without the dot (e.g. E11.9 or E119). Returns the exact match plus more-specific child codes. Provide either code or q, not both. min 3 chars · max 9 chars · match ^[A-Za-z][0-9][0-9A-Za-z](\.?[0-9A-Za-z]{0,4})$ |
q | string | Keyword search over official code descriptions (e.g. "type 2 diabetes neuropathy"). Every word must match. Provide either code or q, not both. min 3 chars · max 120 chars |
billable_only | boolean | When true, only return codes valid for claim submission (excludes category headers). |
limit | integer | Maximum codes returned (1-50, default 10). min 1 · max 50 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/medical/icd10?code=xxx&q=xxx&billable_only=false&limit=1' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/medical/icd10?code=xxx&q=xxx&billable_only=false&limit=1' \ -H 'PAYMENT-SIGNATURE: <base64-json-payload>' # Or use the canonical runner (handles probe → sign → retry): # EVM_PRIVATE_KEY=0x... node --env-file=.env.local \ # --experimental-strip-types scripts/x402-pay.ts \ # 'https://2s.io/api/medical/icd10?code=xxx&q=xxx&billable_only=false&limit=1'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.medical.icd10({
"code": "xxx",
"q": "xxx",
"billable_only": false,
"limit": 1
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.medical.icd10(code="xxx", q="xxx", billable_only=False, limit=1)
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
// EVM_PRIVATE_KEY funds x402 payments per call.
// claude_desktop_config.json
{
"mcpServers": {
"2sio": {
"command": "npx",
"args": ["-y", "@2sio/mcp"],
"env": { "EVM_PRIVATE_KEY": "0x..." }
}
}
}
// 2. Once the server is running, agents call this tool via standard MCP:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "medical.icd10",
"arguments": {
"code": "xxx",
"q": "xxx",
"billable_only": false,
"limit": 1
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object | |
meta | object |
{
"ok": true,
"items": [
{
"code": "example",
"codeDotted": "example",
"billable": false,
"shortDescription": "example",
"longDescription": "example"
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"mode": "verify",
"query": {
"code": "example",
"q": "example",
"billableOnly": false,
"limit": 1
},
"verified": false,
"exactMatch": {
"code": "example",
"codeDotted": "example",
"billable": false,
"shortDescription": "example",
"longDescription": "example"
},
"fiscalYear": 1
}
}