Codes went into effect on April 2, so you can use them now.
Rumors of new specialty codes have been swirling for months, but finally CMS came through and confirmed two new specialties that Medicare payers will accept effective April 2.
According to MLN Matters article MM7600, dated April 27, you'll use specialty code C0 for sleep medicine services. For sports medicine, you should report specialty code 23 when submitting claims to durable medical equipment (DME) MACs for sports medicine services.
You can report your physician's services using one of these new specialty codes if the doctor self-designates his specialty as such during PECOS registration. If you are unsure of whether your physician has enrolled as a particular specialty, you can check your PECOS record using the Medicare online system at https://pecos.cms.hhs.gov.
Resource: To read the complete MLN Matters article, visit www.cms.gov/Outreach-and-Education/Medicare-Learning-Network-MLN/MLNMattersArticles/Downloads/MM7600.pdf.