OO CRLRI-002 -CA,CR,CE vs AA,AE,AR

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Submitted by: Eric Haas	Revision date: Jan 15 2014
Submitted date: Jan 15 2014	Change request ID: OO CRLRI-002
Standard/IG: Implementation Guide	Artifact ID, Name: Original vs Enhanced processing rules (CA,CR,CE vs AA, AE, AR)

Issue

Currently ELR, uses :CA,CR,CE ( enhanced processing rules message acknowledgements) vs  LRI which uses:AA, AE, AR original processing 
rules for Message level Acknowledge response.  LOI is unclear on which to use.  The issue of Original vs Enhanced processing rules 
(CA,CR,CE vs  AA, AE, AR)  affects Section 1.8 Sequence Diagrams,  MSA-1 value. and table HL7008.(  this may be resolved with Value Set
project.)  Also affects ACK ERR segment Condition Predicate.  See section 2.9  MESSAGE PROCESSING RULES  of Chapter of base standard
for description of each.  Since the decision was made to use application level acknowledgements for the S & I V2 lab  messages, enhanced
processing rules apply.

Recommendation

Use enhanced processing rules. Which requires the following changes to the LRI guide:

1) Section 1.8 Sequence diagrams and text - change AA AR and AE to CA, CR and CE

2) Constrain the values in HL7008 to only support CA,CR,CE) (this may already be part of Value Set project.)

3) Remove reference to "AR: ACK ERR segment Condition Predicate. i.e. "Condition predicate: If MSA-1 (Message Acknowledgement) is not valued CA"

Rationale

Since the decision was made to use application level acknowledgements for the S & I V2 lab messages, enhanced processing rules apply.

Resolution

withdraw since being covered in S&I workgroups.