The May 2016 Q&A Medical Coding Webinar from Certification Coaching Org (CCO), www.cco.us, discussed a variety of topics of interest to medical coders. Topics covered included Back To Basics – Physician Billing – The Very First Step; ICD-10 Coding of Osteoarthritis; Which Credential After CPC?; ICD-10 Impact on Risk Adjustment; ER and Probable Diagnosis; Vaccination Coding; and Percutaneous Coronary Intervention CPT Coding. The CCO VIP opportunity and CCO’s Lunch & Learn Coding on FB Live, were also discussed. Attendees’ questions on various coding topics were answered. Educational topics were presented by Jo-Anne Sheehan, CPC, CPC-I, CPPM; Chandra Stephenson, CPC, CIC, COC, CPB, CPCO, CPMA, CPC-I, CCS, CANPC, CEMC, CFPC, CIMC, CGSC, COSC, CRC, CCC; Alicia Scott, CPC, CPC-I, CRC; and Laureen Jandroep, CPC, CPC-I, COC, CMSCS, CHCI, CPPM. The host for the webinar was Boyd Staszewski.