Final answer:
Under the OPPS, outpatient services that are similar both clinically and in use of resources are assigned to separate groups called APCs.
Step-by-step explanation:
Under the OPPS, outpatient services that are similar both clinically and in use of resources are assigned to separate groups called APCs (Ambulatory Payment Classifications).
APCs are a classification system used by Medicare to determine payment rates for outpatient services. Services within the same APC are expected to be similar in terms of clinical content and resource use.
For example, services like cardiac catheterization and certain types of imaging tests might be assigned to the same APC because they require similar resources and have similar clinical characteristics.