Standards

Implementation Guides

The published standards, value sets, and regulations that Retinex Health implements.

Version 1.0 Updated 2026-05-26 Publicly accessible · No charge

This is a curated index of every external standard and regulation that Retinex Health implements or relies on. All links are public. If you maintain a downstream system, this is the right starting point.

Normative Standards

StandardPublisherLink
HL7 C-CDA Release 2.1HL7 Internationalhl7.org
HL7 C-CDA Companion Guide R2.1 (STU 4)HL7 Internationalhl7.org
HL7 FHIR R4HL7 Internationalhl7.org/fhir/R4
US Core Implementation GuideHL7 Internationalhl7.org/fhir/us/core

EHI Export-Specific Implementation Guides

Code Systems & Value Sets

SystemMaintainerReference
LOINCRegenstrief Instituteloinc.org
SNOMED CT (US Edition)SNOMED International / NLMnlm.nih.gov
RxNormNational Library of Medicinenlm.nih.gov
ICD-10-CMCMS / CDC NCHScms.gov
CVX (vaccine codes)CDCcdc.gov
NDCFDAfda.gov
HCPCS / CPTCMS / AMAcms.gov
UCUM (units)Regenstrief Instituteucum.org
HL7 Terminology (THO)HL7 Internationalterminology.hl7.org
NUCC Provider TaxonomyNUCCnucc.org

Regulatory References

  • ONC/ASTP HTI-1 Final Rule — 89 FR 1192 (January 9, 2024)
  • 45 CFR 170.315(b)(10) — EHI Export
  • 45 CFR 170.315(d)(13) — Multi-factor Authentication
  • 45 CFR Part 171 — Information Blocking Regulations
  • 45 CFR 171.302 — Information Blocking Fees Exception
  • 45 CFR Parts 160 and 164 — HIPAA Privacy & Security
  • 45 CFR 164.501 — Designated Record Set definition
  • 45 CFR 171.102 — EHI definition