MedDex

MedDex is a fast, free ICD-10-CM code lookup tool built for medical coders. Search 98,000+ diagnosis codes using natural language — type symptoms the way you'd describe them, and find the right code in seconds. Features: - Natural language search: Type symptoms in plain English to find matching ICD-10 codes - 98,186 ICD-10-CM codes: Complete 2026 code set from the CDC - Code detail pages: See parent codes, child codes, and related codes at a glance - Billable code filtering: Instantly identify billable vs. category codes - Fast results: Sub-200ms search response times - Full code hierarchy: Navigate the complete ICD-10 classification tree - Mobile-optimized: Clean interface designed for quick lookups between patient encounters - Export & copy: Copy codes or export results for your records Built for medical coders, billing specialists, and healthcare professionals who need fast, accurate code lookups without enterprise software complexity. MedDex uses the official CDC ICD-10-CM code set, updated for 2026 including April additions.