CSF NAHLN Messaging Guide
NAHLN Certificate from Test URL 9-20-2018

Message Profile and Header (MSH)

• To report to the NAHLN: Username, Password, and Certificate are required.
• The Schema Definition is not required, but if present the API will validate the message before posting it to the NAHLN website.
• MSH.3 Sending Application is your Laboratories OID. OID Registry
• MSH.4 Sending Facility is your Laboratories Premise ID
• MSH 5 & 6 are NAHLN's information.

Patient PV1

Role ROL3

Next of Kin NK1

Patient Identifier PID3

Specimen SPM

• NALHN only allows three specimen types for CSF testing. Ensure that the appropriate SNOMED code is in the specimen setup.
  • Tonsil: Tissue specimen from tonsil (specimen) Code: 811000009103
  • Tonsil Scraping: Tonsil scraping (specimen) Code: 4241000009102
  • Nasal swab: Nasal swab (specimen) Code: 421000009108 

Test Setup - Messaging Profile

• OBR.31 Setup up a test catalog question that is restricted to a value list of acceptable reasons for submission. 

• OBX.5 This value should be the result name that holds the CT value in test setup

• OBX.8 This value should be the result name that holds the interpretation in test setup. This should be restricted to a value list with only the NAHLN approved interpretation results (POS, NEG, INC).