ACEP ID:
1. What are APCs?
2. How do APCs work?
3. Why did CMS create APCs?
4. What areas of hospital outpatient services are paid under the APC methodology?
5. Are there hospital outpatient services which are NOT paid under APCs?
6. Are drugs and supplies paid for under APCs?
7. Which APCs apply to emergency department (ED) visits, and in 2024, what will the "average" US hospital receive in payment for these ED APCs?
8. How are APC payments calculated?
9. How do hospitals determine which Evaluation and Management service levels to assign for ED and clinic services as they relate to APCs and other payment methodologies?
10. Is there a requirement that the HCPCS codes submitted for payment to Medicare by the hospital and by a treating physician in the ED be identical, or "match?"
11. Can hospitals bill Medicare for the lowest level ED visit for patients who check into the ED and are "triaged" through a limited evaluation by a nurse but leave the ED before seeing a physician?
12. Do ICD-10-CM (Diagnosis codes) play a role in APC payments?
13. How have APCs affected hospital outpatient coding?
14. How do hospitals report procedures when billing an E/M level?
15. How does billing for critical care under APCs differ from the critical care service billed by the physician?
16. What is a Comprehensive APC?
Updated January 2024
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The American College of Emergency Physicians (ACEP) has developed the Reimbursement & Coding FAQs and Pearls for informational purposes only. The FAQs and Pearls have been developed by sources knowledgeable in their fields, reviewed by a committee, and are intended to describe current coding practice. However, ACEP cannot guarantee that the information contained in the FAQs and Pearls is in every respect accurate, complete, or up to date.
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