the402 endpoint detail

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2s.io medical icd10

https://2s.io/api/medical/icd10

payable

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 resu

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.0025
Network
base
Pay to
0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
251 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:08:43.618Z (1d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F2s.io%2Fapi%2Fmedical%2Ficd10"