Additional character added to Health Service Numbers for Reciprocal Medical Billings from Northwest Territories

To: OHIP Billing Software Vendors
Category: Billing Software Specifications
Written by: Claims Services Branch; OHIP, Pharmaceuticals and Devices Division
Date issued: September 13, 2022

The Province and Territory Codes has been updated to include “H” to the valid characters in the Northwest Territories (NWT) Health Service Number (HSN) format.

A link to the updated Province and Territory Codes can be found in the ‘Technical Specifications Interface to Health Care Systems’ which has been updated to reflect format changes to the Northwest Territories Health Service Number for Reciprocal Medical Billing claims.


RMB; Reciprocal Medical Billing; NWT; Northwest Territories; HSN; Health Service Number

Contact information

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