Billings, Medical Payments, and Fee Schedules

Billing and Medical Payments
Bills must be submitted to WSI within one year of the date of service or within one year of the date WSI accepted liability for the work injury or condition.

To assist with timely payment, please follow these guidelines:

• Bill with the appropriate bill format (CMS 1500 or UB 04)
• Bill with valid CPT & HCPC codes
• Follow AMA guidelines for appropriate billing of modifiers
• Submit supporting documentation for all dates of service being billed
• Bill each date of service separately
• Include the injured worker’s name and claim number
• If billing unlisted codes, provide a description of the service provided
• If billing anesthesia the number of minutes should be billed as the units
• List the ICD-9 code for the service being provided
• Provide the tax identification number of the facility
• Provide contact information
• Provide the treating practitioner’s name and NPI number