A nature of suit code is a tool for categorizing the types of cases filed in the federal courts. This code is the basis of all federal caseload statistics produced by the federal Judiciary. Review a list of nature of suit codes (pdf). 

To see more detailed information about a case, access the court's CM/ECF site. You can access that site and other detailed case information from the PACER Case Locator by clicking on the case number. 

Anyone can access PACER to view federal court records, but first you need to register for a PACER account. 

Case information is available through PACER 24 hours a day, including weekends and holidays.