I have not billed for WC in VA, but I do bill for WC in NY. NY has WC4 forms that can be used for billing, however if you are attaching office notes you can use the CMS 1500 form. The WC4 and WC4.2 must be used if office notes are not being sent. A copy of whatever you send must also be sent to the state WC Board as well. Feel free to post any additional questions.