Validation Discrepancy Between HL7v2 MDM Segments OBR and ORC

[Cyprien Mercier]

I am reaching out to you to seek your expertise regarding an observation I have made during the validation of HL7v2 MDM (Medical Document Management) messages. I have noticed a difference in behavior in the validation process between the OBR and ORC segments.

When I validate an MDM message without the OBR segment, the validator returns a single error, indicating the absence of this segment, which is consistent with my expectations :

However, when I perform the same operation by omitting the ORC segment, the validator returns a significant number of errors, mainly related to segment offsets, but none directly related to the absence of the ORC segment :

I am curious about this difference in behavior between the two segments during validation. Is this a specificity of the HL7v2 standard, or could it be related to a peculiarity of the validator being used?

I would appreciate it if you could shed light on this matter.

Thank you in advance for your assistance.

Cyprien

[Rosin, Caroline D. (Fed)]

Hello Cyprien,

 

My guess is that ORC is the first segment of a group. When ORC is present, the parser will try to parse that group. When ORC is not present, the parser considers the whole group as absent.

 

Caroline

 

From: nist...@googlegroups.com <nist...@googlegroups.com> On Behalf Of Cyprien Mercier
Sent: Thursday, April 18, 2024 3:00 PM
To: NIST-GVT <nist...@googlegroups.com>
Subject: Validation Discrepancy Between HL7v2 MDM Segments OBR and ORC

 

I am reaching out to you to seek your expertise regarding an observation I have made during the validation of HL7v2 MDM (Medical Document Management) messages. I have noticed a difference in behavior in the validation process between the OBR and ORC segments.

When I validate an MDM message without the OBR segment, the validator returns a single error, indicating the absence of this segment, which is consistent with my expectations :

However, when I perform the same operation by omitting the ORC segment, the validator returns a significant number of errors, mainly related to segment offsets, but none directly related to the absence of the ORC segment :

I am curious about this difference in behavior between the two segments during validation. Is this a specificity of the HL7v2 standard, or could it be related to a peculiarity of the validator being used?

I would appreciate it if you could shed light on this matter.

Thank you in advance for your assistance.

Cyprien

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