CDA STU Update Publication of HL7 CDA® R2 Implementation Guide: NHSN Healthcare Associated Infection (HAI) Reports, Release 4, STU 2.2 – US Realm March 6, 2024 Lynn Laakso Public Health, STU Update, US Realm Learn more at https://www.hl7.org/implement/standards/product_brief.cfm?product_id=570