Data Dictionary - Most Costly Diagnostic Claims

Archived as of 6/26/2025: The datasets will no longer receive updates but the historical data will continue to be available for download.

This dataset provides information related to the 100 most costly diagnostic claims. It contains information about the total number of patients, total number of claims, and dollar amount paid, grouped by diagnosis.

Restricted to claims with service date between 01/2012 to 12/2017. Restricted to top 100 costly diagnosis codes (by total cost). Provider is the billing provider. If a claim has several diagnostic codes, primary diagnosis is used. ICD9 and ICD10 standard codes are reported. This data is for research purposes and is not intended to be used for reporting. Due to differences in geographic aggregation, time period considerations, and units of analysis, these numbers may differ from those reported by FSSA.