Which of the following improves patient outcomes to save money by reducing hospital and emergency department visits?

Accountable care organizations (ACOs) are designed to improve the quality of care while reducing costs across a broader healthcare system. While ACOs can contribute to better patient outcomes, they do not specifically target the reduction of hospital and emergency department visits as directly as PCMHs do, which focus on individual patient care coordination.

The Centers for Medicare & Medicaid Services (CMS) is a federal agency that oversees healthcare programs but is not a care delivery model itself. While CMS implements policies that can enhance patient outcomes, it does not directly reduce hospital visits like the patient-centered medical home model.

ICD-10-CM is a coding system used for documenting diagnoses and procedures in healthcare settings. Although accurate coding is essential for effective healthcare management, it does not have a direct impact on improving patient outcomes or reducing hospital and emergency department visits.