ICD-10 API for Developers

Access structured, ICD-10 classified medical health topic data through a simple REST API. Free to get started, refreshed daily from trusted sources.

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What is ICD-10?

ICD-10 — the International Classification of Diseases, 10th Revision — is the global standard for classifying medical conditions, symptoms, and procedures. Maintained by the World Health Organization and adopted worldwide, ICD-10 provides a universal language for medical coding used by:

Electronic Health Record (EHR) systems
Insurance billing and claims processing
Hospital and clinical administration
Public health and epidemiology research
Healthcare apps and patient-facing software

ICD-10 organises diseases and conditions into 22 chapters based on body system or condition category — from Diseases of the Respiratory System to Mental and Behavioural Disorders. These chapters provide a structured framework that developers can use to categorise, filter, and present medical data consistently.

Why Developers Need an ICD-10 API

Building health software without standardised medical classification is fragile. Without a consistent taxonomy, your app might store "heart attack", "myocardial infarction", and "MI" as three separate concepts — creating gaps when filtering, searching, or integrating with clinical systems that use ICD-10 codes.

An ICD-10 API solves this by giving you medical data that is already classified and structured according to the ICD-10 standard. Instead of building and maintaining your own classification logic, you query an endpoint and get back data that is already organised by ICD-10 chapter — ready to integrate with your existing healthcare infrastructure.

Common use cases for ICD-10 API integration include:

Symptom checkers — classifying symptoms by body system for structured triage flows
EHR integrations — enriching patient records with structured condition descriptions
Medical billing software — associating conditions with the correct ICD-10 category for coding assistance
Health education apps — presenting medically accurate, categorised content to patients and clinicians
Clinical decision support tools — surfacing relevant condition information by category

How Meducate API Implements ICD-10 Classification

Meducate API automatically classifies every health topic into one of 24 ICD-10 based categories aligned with the standard ICD-10 chapter structure:

Body system categories: Respiratory, Circulatory, Nervous, Digestive, Musculoskeletal, Endocrine, Urinary, Reproductive, and more
Condition categories: Infectious & Parasitic Diseases, Neoplasms, Mental & Behavioral Disorders
Treatment categories: Drugs & Medications, Medical Procedures, Diagnostic & Laboratory
Wellness categories: Health & Wellness, Nutrition & Dietary, Preventive Care, Pediatric Health

Classification is performed automatically using LLM-based processing across data from MedlinePlus — the U.S. National Library of Medicine's health information service. This means every topic you retrieve from the API comes with an ICD-10 category field you can use for filtering, grouping, and display logic without any additional processing on your side.

Integrating the ICD-10 API

Meducate API uses standard HTTP with JSON responses and API key authentication. Here's a basic example querying topics in the Respiratory System category:

curl -H "X-Api-Key: YOUR_API_KEY" \
  "https://api.meducateapi.com/api/topics/search?query=asthma"

The response includes structured topic data with the ICD-10 category field:

{
  "name": "Asthma",
  "type": "Disease",
  "icd10Category": "Respiratory System",
  "description": "..."
}

Authentication uses a simple request header — no OAuth, no token exchange, no complex setup. See the full documentation for all available endpoints and parameters.

Data Freshness & Reliability

All health topics in Meducate are sourced from MedlinePlus and processed daily. The dataset covers 2,000+ conditions, diseases, drugs, symptoms, and procedures — all classified, structured, and kept current. Topics are automatically retired when removed from the source, so your integration never serves stale or invalid data.

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Also see: Medical Data API · Health Topics API · Use Cases