TEFCA identity and organization structure

Last updated: Nov 10, 2025
HEALTH TECH VENDOR
DEVELOPER

The Trusted Exchange Framework and Common Agreement (TEFCA) uses object identifiers (OIDs) to designate unique organizations and records belonging to network participants. An OID is a globally unique identifier defined by the International Organization for Standardization (ISO). Learn more about OIDs.

TEFCA OID types

You must use (and we provide for you) three OID types within TEFCA:

OID type
Description
OID structure
Organization
Corresponds to your organization within TEFCA.
2.16.840.1.113883.3.6147.450.1.X.XXXX.X.X.1
Patient
Corresponds one-to-one with your Master Patient Indexes (MPIs).
We create the first one for you, but if you have multiple MPIs, you should create a patient OID for each MPI in your system.
2.16.840.1.113883.3.6147.450.1.X.XXXX.X.X.2
Document
Corresponds one-to-one with each document you exchange. Each document must have its own unique OID, which can either be a Redox-generated OID followed by your ID (e.g., …3.1^12345) or a version 4 UUID. Learn more about version 4 UUIDs.
2.16.840.1.113883.3.6147.450.1.X.XXXX.X.X.3

To break down the OID structure:

OID segment
Notes
2.16.840.1.113883.3.6147.450
This is Redox.
X
The first X represents the Redox deployment:
0: local development
1: non-production
2: production
XXXX
This segment should be populated with your Redox organization ID.
X
The second X represents the environment type:
0: development
1: staging
2: production
X
The third X represents a number assigned to the partner site. This can be omitted if theres only one site.