Updated: 12/Nov/2024

Added 5000+  list of Invalid principal dx

2021 Version of ICD-10 CM

The ICD-10-CM Validator tool allows you to check your diagnosis codes before you bill them together. The system will automatically check any Excludes and Includes notes for you.

Enter one code per line into the box on the left-hand side. Enter ALL the codes you will list on a claim form to check for conflicts on each code pair. Once you click Validate, your results will be shown below.