An United States Patient Care Summary (US-PCS) is FHIR document that captures key information for care transitions. It aligns with the International Patient Summary and is intended as a modern, streamlined summary that uses US Core resources to populate specific sections. The US-PCS profiles 7 sections (with 10 additional optional sections from IPS) with a primary use case of providing a minimal, non-exhaustive summary that supports clinical decision-making at the point of care for both planned and unplanned care across organizational boundaries. The US-PCS aligns with the IPS but formally derives its Composition profile from the FHIR Clinical Documents Implementation Guide. The US-PCS definition of MustSupport is provided in this guide although implementers should also refer to the US Core Implementation Guide definition of Must Support in the context of populating those resources.