LOI/LRI has continued on as Lab US Realm, found here

BACKGROUND (LOI)

The Laboratory Orders Interface (LOI) Initiative is focused on the creation of an Implementation Guide (IG) for the ambulatory setting that builds on the architecture and design of the California HealthCare Foundation’s (CHCF) EHR-Lab Interoperability and Connectivity Specification (ELINCS) Laboratory Orders and the Health Level Seven (HL7) Version 2.5.1 Implementation Guide: S&I Framework Lab Results Interface.

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HL7 Version 2.5.1 Implementation Guide: S&I Framework Laboratory Test Compendium Framework, Release 2 - US Realm (eDOS)
Product Brief: http://www.hl7.org/implement/standards/product_brief.cfm?product_id=151
DSTU Comments: http://www.hl7.org/dstucomments/showdetail.cfm?dstuid=172

HL7 Version 2.5.1 Implementation Guide: S&I Framework Lab Results Interface, Release 1, DSTU R2 – US Realm (LRI)
Product Brief: http://www.hl7.org/implement/standards/product_brief.cfm?product_id=279
DSTU Comments: http://www.hl7.org/dstucomments/showdetail.cfm?dstuid=171

HL7 Version 2.5.1 Implementation Guide: S&I Framework Laboratory Orders from EHR, Release 1, DSTU Release 2 - US Realm (LOI)
Product Brief: http://www.hl7.org/implement/standards/product_brief.cfm?product_id=152
DSTU Comments: http://www.hl7.org/dstucomments/showdetail.cfm?dstuid=180

HL7 Version 2 Implementation Guide: Laboratory Value Set Companion Guide, Release 1- US Realm
Product Brief: http://www.hl7.org/implement/standards/product_brief.cfm?product_id=413
DSTU Comments: Please use the LRI DSTU Comments link

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Background (LRI)

There are at least two standard specifications for ambulatory laboratory reporting, neither of which are adopted universally across industry. The cost and time to initiate new electronic laboratory results interfaces hampers broad adoption of such interfaces. The field by field details of HL7 v2 implementation guides used by clinical labs and EHRs vary, creating a need for mapping or configuration per interface, and the prevalence of core subsets of LOINC codes for common tests and analytes also varies, causing downstream issues in decision support and quality reporting.

Meaningful Use Alignment: Incorporate lab results into EHR as structured data. Supports objectives for Decision Support, Quality Reporting, Transitions in Care, and Electronic copies of Clinical Summaries and Discharge Instructions.

Scope

• Address the challenge of lab reporting to ambulatory primary care providers. This will be driven primarily by the needs of internal medicine, family practice and pediatrics, but may also be leveraged by other providers and settings.
• Optionally: enable pilots that demonstrate electronic results delivery through the agreed-upon standard, including linkages with directories and transport