Re: [IHE/publications] IHE TF-3 Change Proposal 977 (Issue #628)

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Oliver Egger

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Feb 7, 2026, 1:43:37 AMFeb 7
to IHE/publications, Thomas Papke, Mary Jungers, IHE ITI Technical Committee
Hi Thomas
CC iti-tech

Yes it looks like this CP got lost somehow in the process, it was not finished in ballot round 44, the last comment mentioned on the wiki
CP 977 - XTN datatype clarification for phone number - pending input from Rob Horn) but this seems to have been done by Rob in
May 29, 2018 as you point out in the link.

If you could provide a PR that would be great and then we could update it after the next ballot round.
Mary: do you agree?

Best regards,
Oliver


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On Thu, 5 Feb 2026 at 20:20, Thomas Papke <notifi...@github.com> wrote:
Thopap created an issue (IHE/publications#628)

The change proposal CP-ITI-977 is in status final Text since 2018.

But the corresponding changes
https://docs.google.com/document/d/1ZGQMbiq2uj9Zsb-JXVp9glUoEXclX-n8

seems to be missing in the current version
https://github.com/IHE/publications/blob/master/ITI/TF/Volume3/ch-4.2.html#L1970

The IHE CP Tracking sheet mention for CP-977 the status of "integrated".

Is there any reason why this is missing or can i simple add a PR to add them?


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Vassil Peytchev

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Feb 10, 2026, 12:16:35 PMFeb 10
to Oliver Egger, IHE/publications, Thomas Papke, Mary Jungers, IHE ITI Technical Committee

I have a concern with this CP – the leading zeroes are in my opinion unnecessary, as they are indicators, and nor part of the number. As far as I know, in Europe, 0xx (or 0x, or 0xxx) all designate a regional code, while 00x, 00xx, or 00xxx mean county code. In both cases the code is x, or xx or xxx, the 0 is just the regional designator, just like 00 or the mobile equivalent of + is the country designator. When you list the full country number, the regional designator must be omitted.

 

Should we disallow leading zeroes in the area/city codes field?

 

 

From: iti...@googlegroups.com <iti...@googlegroups.com> On Behalf Of Oliver Egger
Sent: Saturday, February 7, 2026 12:43 AM
To: IHE/publications <reply+AASNPNFKRFNFJOYQ4I...@reply.github.com>; Thomas Papke <thomas...@icw.de>; Mary Jungers <mjun...@ihe.net>
Cc: IHE ITI Technical Committee <iti...@googlegroups.com>
Subject: [ititech:9994] Re: [IHE/publications] IHE TF-3 Change Proposal 977 (Issue #628)

 

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Mary Jungers

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Feb 10, 2026, 1:18:05 PMFeb 10
to Oliver Egger, IHE/publications, Thomas Papke, Vassil Peytchev, IHE ITI Technical Committee
Oliver,

I agree with the process once the committee determines the best solution.

Regards,
Mary


Mary Jungers

Documentation Specialist | IHE International

 mjun...@ihe.net

 

Integrating the Healthcare Enterprise|IHE.net



From: 'Vassil Peytchev' via IHE ITI Technical Committee <iti...@googlegroups.com>
Sent: Tuesday, February 10, 2026 11:16 AM
To: Oliver Egger <oliver...@ahdis.ch>; IHE/publications <reply+AASNPNFKRFNFJOYQ4I...@reply.github.com>; Thomas Papke <thomas...@icw.de>; Mary Jungers <mjun...@ihe.net>

Cc: IHE ITI Technical Committee <iti...@googlegroups.com>
Subject: RE: [ititech:9995] Re: [IHE/publications] IHE TF-3 Change Proposal 977 (Issue #628)
 

Gianluca Pavan

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Feb 11, 2026, 4:39:27 AMFeb 11
to Mary Jungers, Oliver Egger, IHE/publications, Thomas Papke, Vassil Peytchev, IHE ITI Technical Committee
I agree with Vassil that the leading zeros are unnecessary plus they could lead to a misunderstanding of the phone number.


I also noted that in the example 

^PRN^PH^^^^^^^^^^+31 42 1123 4567 (international phone number)

 one "^" exceeds



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Michael Onken

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Feb 12, 2026, 12:11:38 PMFeb 12
to iti...@googlegroups.com
Hi everybody,

On 11.02.26 Gianluca Pavan wrote:

> I agree with Vassil that the leading zeros are unnecessary plus they
> could lead to a misunderstanding of the phone number.
>
>
> I also noted that in the example
>
> ^PRN^PH^^^^^^^^^^+31 42 1123 4567 (international phone number)
>
> one "^" exceeds

I think there even is another issue with the way the ITI Framework
describes the XTN datatype in "Table 4.2.3.1.7-2: Data Types".

Actually, it refers to the HL7 v2.5 XTN data type definition.
The latter requires (e.g. see [1]) that various components for phone
number components are of datatype NM (e.g. XTN.7 Local Number).

However, the examples include the following two entries:

----------------8<----------------------8<--------------------
^PRS^PH^^31^^(042) 1123 4567 (national phone number)
^PRS^PH^^^^+31 42 1123 4567 (international phone number)

----------------8<----------------------8<--------------------

XTN.7 includes spaces which is not permitted in XTN.7's NM datatype
[2].

We encountered related problems in the German EHR (partly XDS-based),
where some users entered spaces in XTN.7 (probably inspired by the
examples) and others failed validating them using off-the-shelve
libraries which validate against HL7 XTN/NM definition.

Maybe the examples should be fixed if one edits the related section anyway.

Note that the ITU E.123 notation for telephone numbers seems to
recommend and sometimes even require spaces...

So one way to go would be to stick with the XTN datatype, fix the
examples and recommend ITU E.123 notation for XTN.12 (Unformatted
Telephone Number) only.

BR Michael

[1] https://hl7-definition.caristix.com/v2/HL7v2.5/DataTypes/XTN
[2] https://hl7-definition.caristix.com/v2/HL7v2.5/DataTypes/NM


Michael Onken

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Feb 12, 2026, 12:16:23 PMFeb 12
to iti...@googlegroups.com
P.S:

Am 12.02.26 um 18:11 schrieb 'Michael Onken' via IHE ITI Technical
Committee:

> However, the examples include the following two entries:
>
> ----------------8<----------------------8<--------------------
>   ^PRS^PH^^31^^(042) 1123 4567 (national phone number)
>   ^PRS^PH^^^^+31 42 1123 4567 (international phone number)
>
> ----------------8<----------------------8<--------------------
>
> XTN.7 includes spaces which is not permitted in XTN.7's NM datatype
> [2].

BTW: Neither are brackets permitted in NM :-)

The "+" is fine.

BR Michael

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