Hi, I am working with the final drafts of EN 13606, maybe some 
information I use is obsolete, please let me know if it is.
Maybe, if I misunderstand something, please let me know.

-------------------------------------
I have a problem with II, used in GPIC *PatientExtendedInformation*, it 
has an ID, which is a Set of II.

Definition from CEN document:
id    O    SET<II>    One or more identifiers that may be used to 
uniquely identify the patient
Examples: social security number, health service number, hospital 
number, case notes number

-------------------------------------

I am writing a mapping library from small GP Information Systems to 
GPIC-objects. And When you create a GPIC-object, it takes care of 
filling itself with data.

So it creates a list of II, in which the ID's are stored.
At this moment I have following ID's:
- Local GP-Information System ID, which is in most GP-Systems the 
primary key of the patient-table.
- Insurance number

The last one gives me a headache, when I look at the *defintion of II in 
CEN TS 14796*:
An II consists of four properties:
*extension*      The value of the identifier, unique within its 
assigning authority's namespace.
*root*             Mandatory A unique identifier that guarantees the 
global uniqueness of the instance identifier. The root alone may be the 
entire instance identifier, an
extension value is not needed.
*assigningAuthorityName* A human readable name or mnemonic for the 
assigning authority. This name is provided solely for the convenience of 
unaided humans
interpreting an II value. Note: no automated processing must depend on 
the assigning authority name to be present in any form.
*validTime*     If applicable, specifies during what time the identifier 
is valid. By default, the identifier is valid ......

The root value is not known to the GP-System, and not known to me, al 
though this is the only mandatory property, I cannot use it. I just 
forget that, I can write something in it later, it is a not used 
property in my context of PatientExtendedInformation. (Someone have an 
ID what can be put in it?)

The extension has the ID,
- in the Local ID, it contains a number, as assigningAuthorityName I 
give it LocalID
- in the InsuranceNumber, it contains the (guess?) the InsuranceNumber, 
and as assigningAuthorityName, the InsuranceCompany.

The remark in the document says that no automated processing should rely 
on that.

*My Question
*How can an automated Process distinguish a InsuranceNumber?
The II datatype needs IMHO a mood-indicator, or else a automated process 
will never know what to do with one of the ID's.

Thanks in advance for an answer

kind regards
Bert Verhees
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