Hi.
What are the best resources, websites, sources, classes and certifications needed to become a both inpatient and outpatient facility biller? Learn in detail, calculating DRG, revenue codes, rate codes, value codes, occurrence codes, APG payment system, OPPS and which CPT codes must certain facilities use? Does the AAPC coder include facility billing? I am coming from the payor said so any information regarding common such as miscalculating DRGs upcoding or bundling issues would be especially helpful.

I have a CPC and a COC and I feel like I need more targeted education and resources not found in the certification courses.

Lastly, do you have information regarding New York State Medicaid coding and guidelines? Thank you.