United States Patient Care Summary (US-PCS) Implementation Guide - Downloaded Version 1.0.0 See the Directory of published versions

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Official URL: http://hl7.org/fhir/us/pcs/ImplementationGuide/hl7.fhir.us.pcs				Version: 1.0.0	Highlight text changes?
IG Standards status: Trial-use				Maturity Level: 2	Computable Name: USPCS
Other Identifiers: OID:2.16.840.1.113883.4.642.40.88

The United States Patient Care Summary (US-PCS)

Purpose and Approach

The United States Patient Care Summary (US-PCS) is a FHIR document that captures key information for care transitions. It conforms to the FHIR International Patient Summary (IPS), derives its profiles from FHIR Clinical Documents (1.1.0), and applies additional constraints relevant to the United States. Its use is intended as a modern, streamlined summary that builds on the long-standing exchange of clinical documents in the United States. All US-PCS document instances will conform to the FHIR IPS specification. Differences between the US-PCS and IPS are reviewed in detail in the IPS variance page in this guide.

Health records in the United States have been implementing FHIR resources through the US Core profiles over the past decade, and the US-PCS seeks to leverage those resources through its profiles. This US-PCS Implementation Guide defines a Bundle and Composition profile with re-use of individual clinical resources defined in the US Core Implementation Guide as shown below.

Figure 1: The US-PCS

Project Need

The rapid global adoption of the IPS is reshaping expectations for cross-border, interoperable patient information. Countries across Europe, Asia-Pacific, and the Americas are implementing IPS-aligned solutions to support emergency care, travel medicine, cross-jurisdictional health services, public health response, and modern digital health ecosystems. As reflected in the growing number of national implementations showcased worldwide, the IPS has become a foundational global asset for safe, timely, and semantically consistent patient information exchange.

These international advancements create a strong external driver for the United States to establish a nationally tailored, IPS-conformant patient summary that maintains global interoperability while addressing US clinical, regulatory, and technical realities. Aligning with this global momentum ensures that US healthcare remains connected to an emerging worldwide framework, supports care for US travelers abroad and international patients in the US, and signals US leadership in global health data standards.

Developing the US-PCS harmonizes the IPS with FHIR US Core and positions the nation to participate fully in the evolving global digital health landscape to meet increasing expectations from patients, providers, governments, and implementers.

The Project Proposal and Project Scope Statement for US-PCS are available for additional reference.

Project Scope

In-Scope Items

FHIR Implementation Guide with a minimum of profiles for Bundle and Composition that:

• Derives from FHIR Clinical Documents Profile 1.1.0
• Conforms to FHIR International Patient Summary 2.0.1
• Provides narrative guidance on:
  • Relationship to US Core (https://hl7.org/fhir/us/core/)
  • Terminology guidance in regards to IPS
  • Use case of US-PCS
  • Guidance on relationship to prior CDA documents and future FHIR-based clinical documents in US Realm
  • Description of implementation learnings/experience
• Examples of US-PCS along with validation and testing artifacts

Out-of-Scope Items

• This work does not replace the full capabilities of the Consolidated Clinical Document Architecture (C-CDA). Document types beyond patient summary will not be profiled.
• This work does not provide guidance on CDA to FHIR or FHIR to CDA mappings
• This work will not profile resources that already exist in US Core

Principles of the US-PCS

This US-PCS Implementation Guide specifies both business principles for the creation of patient care summaries and technical capabilities of systems that conform to this specification. The business principles of US-PCS build on the original intent of the CCD and conform with the FHIR IPS specifications. These are explained in the US-PCS Use Case to keep required content minimized to the most relevant information.

The guide defines three sections required in all instances (Problems, Allergies, and Medications) and four additional sections that systems must be capable sending and receiving. US-PCS also requires support of the $summary operation in US-PCS generation. These technical capabilities are represented through "Must Support" flags throughout this specification as well as conformance statements in US-PCS General Guidance.

We strongly encourage implementers to consider the use-case of minimal, non-exhaustive summaries when creating US-PCS documents. Although systems must be capable of sending and receiving more than the required sections, we strongly discourage systems from sharing all available data in most US-PCS document instances. For example, sending decades of vital sign and laboratory data creates large, unwieldy documents that violate the spirit of a minimal, non-exhaustive patient summary. The separation of business principles from technical capabilities in the US-PCS are shown in the following illustration:

Figure 2: The US-PCS Business Principles and Technical Capabilities

Authors and Contributors

Role	Name	Organization	Contact
Editor	John D'Amore	More Informatics	johnd@moreinformatics.com
Editor	Brett Marquard	Wave One Associates	brett@waveoneassociates.com
Editor	Gay Dolin	Namaste Informatics	gdolin@namasteinformatics.com
Editor	Eric Haas	Health eData	ehaas@healthedatainc.com
Contributor	Rob Hausam	Hausam Consulting	rob@hausamconsulting.com
Contributor	Josh Hemmesch	MEDITECH	jhemmesch@meditech.com
Contributor	James Jahns	Epic	jjahns@epic.com
Contributor	Bryant Karras	Washington Department of Health	Bryant.Karras@DOH.WA.GOV
Contributor	Isaac Vetter	Epic	Isaac@epic.com
Contributor	Jason Vogt	MEDITECH	jvogt@meditech.com