All codes in a 3-character category
API · /icd10-api
ICD-10 Codes API
healthy
4,258 Subscribers
The ICD-10-CM diagnosis code system as an API — 71,000+ International Classification of Diseases (10th revision, Clinical Modification) codes used in healthcare, billing and insurance. Look up any code (e.g. E11.9 → Type 2 diabetes mellitus without complications), search the classification by condition, or browse every code in a 3-character category. Ideal for EHR/EMR systems, medical billing, claims and health-tech tooling.
api.oanor.com/icd10-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 85 ms
- Server probes · 24h
- Subscribers
- 4,258
- active
- Total calls
- 272
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 2,000 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- 2,000 calls/month
- 2 req/sec
- Lookup + search + category
- No credit card
Starter
€12.00 /month
- 40,000 calls / month
- 8 requests / second
- Hard cap (429 above quota, no overage)
- 40k calls/month
- 8 req/sec
- Condition search
- Email support
Pro
€39.00 /month
- 250,000 calls / month
- 20 requests / second
- Hard cap (429 above quota, no overage)
- 250k calls/month
- 20 req/sec
- EHR / billing integration
- Priority support
Enterprise
€120.00 /month
- 1,500,000 calls / month
- 50 requests / second
- Hard cap (429 above quota, no overage)
- 1.5M calls/month
- 50 req/sec
- Claims / health-tech platform
- Dedicated SLA
Built by
Related APIs
Other APIs with overlapping tags.
ATC Drug Classification API
The WHO ATC (Anatomical Therapeutic Chemical) drug classification as an API — 6,400+ codes organising every medicine into a 5-level hierarchy: anatomical main group → therapeutic subgroup → pharmacological subgroup → chemical subgroup → chemical substance. Look up any ATC code (e.g. A10BA02 → metformin, N02BE01 → paracetamol, J01CA04 → amoxicillin) with its full ancestor chain, direct children and WHO Defined Daily Doses (DDD); search drugs by name; or navigate the tree from the 14 anatomical main groups. Ideal for e-prescribing, pharmacy, clinical decision support, drug databases and health analytics.
api.oanor.com/atc-api
US Hospitals API
Search and filter more than 5,400 Medicare-certified hospitals across the United States and territories: filter by state, city, free-text name, hospital type (acute care, critical access, psychiatric, childrens, veterans and more), ownership category, whether the hospital offers emergency services, and the CMS overall star rating. Look up any hospital by its CMS facility id, and read metadata listing every state with its hospital count plus the available types and ownership categories for building filter UIs. Each record returns the facility id, name, full address, county, phone number, type, ownership, emergency-services flag and overall rating. Built on the official CMS Hospital General Information dataset. Every endpoint accepts input via the query string or the request body and returns lean JSON. Pure server-side data (no third-party upstream), so responses are instant and always available. Ideal for healthcare directories, patient-facing apps, insurance and care-navigation tools, and research.
api.oanor.com/hospitals-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for ICD-10 Codes API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call ICD-10 Codes API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for ICD-10 Codes API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does ICD-10 Codes API cost?
ICD-10 Codes API has a free tier with 100 calls / month. Paid plans start at €12.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is ICD-10 Codes API GDPR-compliant?
All requests to ICD-10 Codes API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/icd10-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/icd10-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/icd10-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/icd10-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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