Everything You Need to
Code with Confidence
29,853 ICD-10 codes, 13,378 CPT procedures, and 9,360 medical conditions with Medicare payment data, DRG insights, and AI-assisted search — all free, no account required.
Search Everything
Type any ICD-10 code, CPT procedure, or medical condition into the search bar — or ask Octo AI a question in plain English. The unified search is on every page and handles codes, names, and natural language queries.
Explore & Analyze
Drill into any diagnosis or procedure to see billable status, real Medicare payment data, DRG inpatient payments, coding guidance, and related conditions. Browse 21 chapters of ICD-10 codes or the top 200 CPT procedures by volume.
Validate & Export
Paste multiple ICD-10 codes into the Excludes Conflict Checker to detect Excludes1 (cannot report together) and Excludes2 (needs separate documentation) conflicts before claims go out. Copy any code with one click.
What You Can Do
Every feature is built for one purpose — helping you find, validate, and understand medical codes faster.
Browse All Codes
29,853 ICD-10 codes organized by chapter with billable status at a glance. 13,378 CPT/HCPCS procedures ranked by Medicare volume. Every code links to its full detail page.
Browse DiagnosesKnow the Payments
Real CMS Medicare payment data on every billable code — not estimates. See national average facility and non-facility rates for procedures, and DRG inpatient payment breakdowns for diagnoses.
View ProceduresAsk Octo AI
Ask any coding question in plain English — "What's the code for abdominal pain left side?" or "Extract billable codes from this note." Octo can process pasted clinical notes and even uploaded PDFs and images. Accessible from every page via the bottom bar or Cmd+K.
Code with Confidence
The Excludes Conflict Checker catches Excludes1 and Excludes2 issues between any combination of ICD-10 codes. Each diagnosis page includes coding guidance, additional info from parent codes, and links to related conditions.
Check ConflictsBy the Numbers
29,853
ICD-10 Codes Indexed
13,378
CPT/HCPCS Procedures
9,360
Conditions with Guidance
100%
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Who Uses This
Built for everyone who touches medical codes — from the front desk to the OR.
Medical Coders
Validate code combinations, look up payment data, and catch Excludes conflicts before claims go out.
Clinicians
Quickly find the right diagnosis code, check documentation requirements, and stay current with coding guidance.
Billing Staff
Research Medicare payment rates, verify billable status, and ensure clean claims with the Conflict Checker.
Students
Learn ICD-10 and CPT coding with real-world data, browse chapter structure, and understand DRG payment logic.
Start Searching
No sign-up, no credit card, no upsells. Just instant access to the most comprehensive free medical coding reference on the web.