The date of service determines the compliant code format to be used in a claim regardless of the date the claim is filed or submitted. Providers will submit claims after October 1, 2014 with ICD-9 codes when the services were performed prior to October 1, 2014. Payers will process claims if received after October 1, 2014 with ICD-9 codes when the services were performed prior to October 1, 2014. This situation is HIPAA compliant.

 

Source: Centers for Medicare & Medicaid Services, www.cms.gov, February 2014.