Grace period doesn't mean you should relax -- continue your deadline prep. If your practice is sweating over the fact that your 5010 standard won't be in place by the Jan. 1 deadline, CMS has an early holiday gift for you. In a Nov. 17 announcement, CMS stated that it will not initiate enforcement action regarding 5010 until March 31, 2012. Don't Get Complacent, However Not a deadline shift: CMS stresses in its statement that the 5010 compliance date remains Jan. 1, 2012. However, the agency will not penalize practices that aren't using 5010 until after the new 90-day "discretionary enforcement period" ends in March, as long as practices can demonstrate that they are working toward 5010 use. "If requested, covered entities that are the subject of complaints must produce evidence of either compliance or a good faith effort to become compliant with the new HIPAA standards during the 90-day period," CMS says in its statement. To read the complete CMS announcement, visit www.cms.gov/ICD10/Downloads/CMSStatement5010EnforcementDiscretion111711.pdf. Know the Rules for Address Field If you're sticking to your guns and leaving a PO box as your place of service address in the new 5010 version, expect denials. That's the word from CMS's Chris Stahlecker, who spoke about this issue during the agency's Nov. 9 HIPAA Version 5010 National Provider Call. A caller phoned into the forum and said that her MAC told her that it would not enforce the version 5010 restriction that will prohibit practices from putting a P.O. box as the place of service address. CMS, however, sang a different tune. "That's a very interesting comment for you to raise," Stahlecker said. "The billing provider address line cannot be a PO box, and, no, CMS has not taken the position that that edit is going to be lifted at this time, so right now the edit is in place and the software that we have distributed to the MACs for them to be executing should cause a claim that comes in with a PO box to reject." Although the PO box issue has been a point of contention among practices throughout the healthcare industry, CMS has not formally issued anything that says you can use the PO box address. "We appreciate this difficulty," Stahlecker added. "That said, we're still not, as a payer, permitted to ignore such a requirement." She noted that CMS would have to "think very hard about impact" before such a change could be implemented. Until further notice, using a PO box will cause claims to reject, so you should stick with using a street address as the place of service address on your claims. Still more: Although some trading partners have interpreted that as meaning that all Part B MACs should turn off their PO box claim edit, CMS stressed the fact that this is not the case. Stahlecker reiterated the fact that the PO box issue is very real and will cause claim rejections as of Jan. 1. Paper Claims Can Still Use PO Boxes One caller to the forum noted that when using paper forms, CMS recommends that Box 33 should be a physical address and not a PO box so it can be mapped to a 5010 form. However, "Providers are perfectly welcome to put a PO box on the 1500 form," said CMS's Brian Reitz. "What the NUCC recommends is just that -- recommendations -- there's no force of law behind them."