CA Transform: Remove Accession Number

[JohnNKing]

Story

As UCSD, so that I can ingest an NBS result message, I need the accession number OBX removed (as this uses a local code that can't be supported).

Pre-conditions

• n/a

Acceptance Criteria

• For ORUs sent by ReportStream to UCSD, the accession number OBX (as identified by OBX-3.4 as '99717-5' AND OBX-3.6 as 'L') is removed.
• The Observation set ID (OBX-1) values for all OBX segments are renumbered to be sequential (Note: This happens automatically as part of the RS FHIR => HL7 conversion; if not, we should discuss this as a team to see how essential this scope is)

Tasks

Research

• Research work needed to complete the story
• Foundational: High-level research that will support this and future efforts

Engineering

• Engineering work needed to complete the story
• Foundational: Technical runway work to support this and future efforts

Definition of Done

• Documentation tasks completed
  • Documentation and diagrams created or updated
    • ADRs (/adr folder)
    • Main README.md
    • Other READMEs in the repo
    • If applicable, update the ReportStream Setup section in README.md
  • Threat model updated
  • API documentation updated
• Code quality tasks completed
  • Code refactored for clarity and no design/technical debt
  • Adhere to separation of concerns; code is not tightly coupled, especially to 3rd party dependencies
  • Code is reviewed or developed by pair; 1 approval is needed but consider requiring an outside-the-pair reviewer
  • Code quality checks passed
• Security & Privacy tasks completed
  • Security & privacy gates passed
• Testing tasks completed
  • Load tests passed
  • Unit test coverage of our code >= 90%
• Build & Deploy tasks completed
  • Build process updated
  • API(s) are versioned
  • Feature toggles created and/or deleted. Document the feature toggle
  • Source code is merged to the main branch

Research Questions

• Optional: Any initial questions for research

Decisions

• Optional: Any decisions we've made while working on this story

Notes

• Accession Number OBX example:

  trusted-intermediary/examples/CA/002_CA_ORU_R01.hl7

  Line 65 in be06050

  OBX|9|TX|^^^99717-5^Accession Number^L|1|091-83-561/21-2013-11|||N|||F|||20230706093730