◆ CMS updated place-of-service (POS) coding information in an MLN fact sheet on the three-day qualifying inpatient hospital stay before a skilled nursing facility admission.^[1] “If a patient is seen in a physician’s office, but is an inpatient of the hospital, use POS code 21 for inpatient hospital. The POS code reflects a different setting than the address and ZIP Code of the practice location (the physician’s office),” CMS said.