Explain how ICD-10-CM coding accuracy affects payment rates under PPS systems

This week, you will analyze how coding accuracy and compliance directly impact reimbursement under Medicare and Medicaid payment systems such as the Inpatient Prospective Payment System (IPPS) using MS-DRGs and the Hospital Outpatient Prospective Payment System (OPPS) using APCs.

For your initial post:

Explain how ICD-10-CM coding accuracy affects payment rates under PPS systems.

Describe at least one compliance risk (e.g., upcoding, medical necessity errors) and its potential impact on reimbursement.

Compare the impact of coding accuracy on reimbursement under PPS versus Fee-for-Service (FFS) models.