Lithuanian Lifestyle Implementation Guide, published by Lithuanian Medical Library. This guide is not an authorized publication; it is the continuous build for version 0.0.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7LT/ig-lt-lifestyle/ and changes regularly. See the Directory of published versions

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Official URL: https://hl7.lt/fhir/lifestyle/ImplementationGuide/lt.hl7.fhir.lifestyle				Version: 0.0.1	Highlight text changes?
					Computable Name: LTLifestyle

Lithuanian Lifestyle Implementation Guide

Introduction and Purpose

This Implementation Guide (IG) specifies how to consistently represent and exchange structured patient data related to lifestyle factors, health behaviours, and screening support using the Fast Healthcare Interoperability Resources (FHIR) standard. Accurate capture and exchange of this information is important for prevention, risk stratification, chronic disease management, screening workflows, and population health use cases.

This guide supports the standardized representation of lifestyle-related data so that it can be consistently recorded, exchanged, and interpreted across clinical systems, patient-facing applications, research environments, and public health infrastructures.

Audience

This guide is intended for implementation guide authors, system vendors, integrators, healthcare solution developers, and other stakeholders involved in exchanging lifestyle and screening-related data using FHIR. Readers are expected to have at least a basic familiarity with FHIR and to refer to the core FHIR specification where additional background is needed.

Scope and Key Content

This guide provides structured FHIR profiles and implementation guidance for a core set of lifestyle and screening-related domains, including:

• Tobacco Use: Smoking status, exposure, cessation history, type used, consumption level, and duration.
• Alcohol Use: Consumption patterns, use history, and screening results such as AUDIT-C.
• Physical Activity: Activity level, duration, intensity, step counts, and measurement devices.
• Nutrition: Dietary intake and related nutritional observations.
• Family History: Family history of cardiovascular disease, diabetes, and screening-related family history data.
• Metabolic Syndrome: Assessment of metabolic syndrome based on NCEP ATP III criteria.
• Screening Support: Questionnaire-based screening support, medication statements in screening context, and diabetes duration status.

Supporting artifacts also include extensions for other activity descriptions, dietary changes, and medication timing.

Why Use This Guide?

By adopting these profiles and guidance, implementers can support a standardized approach to:

• Interoperability: Facilitate seamless, semantic exchange of lifestyle and screening-related data between Electronic Health Records (EHRs), patient portals, screening systems, research platforms, and public health registries.
• Data Quality: Improve the consistency, completeness, and comparability of recorded observations and questionnaire-derived data through standardized structures, data types, and terminology bindings.
• Clinical Utility: Support prevention, risk assessment, screening workflows, clinical decision support, and population health analysis by making lifestyle-related information available in a structured and reusable form.

How to Navigate This Guide

This guide is organized into several sections that support implementation from overview to detailed conformance artifacts. All conformance and example resources are listed on the Artifacts page. Key sections include:

• Artifacts — Complete list of profiles, extensions, terminology resources, and example instances defined by this guide.
• Profiles — StructureDefinitions for observations, family history, medication statements, questionnaires, devices, and extensions.
• Terminology — ValueSets and terminology bindings used by the profiles.
• Examples — Example instances across lifestyle, screening, and supporting resource domains.

IP Statements

Contributors

Name	Role	Organization
Igor Bossenko	Primary Author	HELEX Solutions
Kati Laidus	Co-Author	HELEX Solutions
Martynas Bieliauskas	Co-Author	LMB