HL7 v2.5.1 Specificationsv2.5.1

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OVR segment

Definition: This segment allows a sender to override specific receiving application’s business rules to allow for processing of a message that would normally be rejected or ignored. In many instances, business rules will be set as guidelines relative to patient care. In some instances it is in the patient’s better interest to circumvent these guidelines. In other cases, business rules may exist to support normal process flow, but which may be bypassed or ignored under certain special circumstances. This segment is linked to the proposed ERR segment changes in that the first attempt to process a

The shape of one line

segmentOVR|OVR-1Business Rule Override Type|OVR-2Business Rule Override Code|OVR-3Override Comments|OVR-4Override Entered By|OVR-5Override Authorized By

optional

Count the pipes to find a field, and count the empty ones too: an empty field still holds its place. Leave out the separator before OVR-2 and its value arrives as OVR-1, so the receiver stores Business Rule Override Code as Business Rule Override Type.

This page carries the OVR field table as published and nothing beyond it. The field notes, vendor behaviour, FHIR mapping and parsing guidance that thePID page has are still to be written for OVR.

Every field

SEQLENDTOPTRP/#TBL#ITEM#Element nameCardinality
705CWEO051801829Business Rule Override Type0..1

OVR-1 is a CWE, which holds 9 components separated by carets.

SEQLENDTOPTTBL#Component name
CWE.120STOIdentifier
CWE.2199STOText
CWE.320IDO0396Name of Coding System
CWE.420STOAlternate Identifier
CWE.5199STOAlternate Text
CWE.620IDO0396Name of Alternate Coding System
CWE.710STCCoding System Version ID
CWE.810STOAlternate Coding System Version ID
CWE.9199STOOriginal Text
705CWEO052101830Business Rule Override Code0..1

OVR-2 is a CWE, which holds 9 components separated by carets.

SEQLENDTOPTTBL#Component name
CWE.120STOIdentifier
CWE.2199STOText
CWE.320IDO0396Name of Coding System
CWE.420STOAlternate Identifier
CWE.5199STOAlternate Text
CWE.620IDO0396Name of Alternate Coding System
CWE.710STCCoding System Version ID
CWE.810STOAlternate Coding System Version ID
CWE.9199STOOriginal Text
OVR-3200TXO01831Override Comments0..1
250XCNO01832Override Entered By0..1

OVR-4 is a XCN, which holds 23 components separated by carets.

SEQLENDTOPTTBL#Component name
XCN.115STOID Number
XCN.2194FNOFamily Name
XCN.330STOGiven Name
XCN.430STOSecond and Further Given Names or Initials Thereof
XCN.520STOSuffix (e.g., JR or III)
XCN.620STOPrefix (e.g., DR)
XCN.75ISB0360Degree (e.g., MD)
XCN.84ISC0297Source Table
XCN.9227HDO0363Assigning Authority
XCN.101IDO0200Name Type Code
XCN.111STOIdentifier Check Digit
XCN.123IDC0061Check Digit Scheme
XCN.135IDO0203Identifier Type Code
XCN.14227HDOAssigning Facility
XCN.151IDO0465Name Representation Code
XCN.16483CEO0448Name Context
XCN.1753DRBName Validity Range
XCN.181IDO0444Name Assembly Order
XCN.1926TSOEffective Date
XCN.2026TSOExpiration Date
XCN.21199STOProfessional Suffix
XCN.22705CWEOAssigning Jurisdiction
XCN.23705CWEOAssigning Agency or Department
250XCNO01833Override Authorized By0..1

OVR-5 is a XCN, which holds 23 components separated by carets.

SEQLENDTOPTTBL#Component name
XCN.115STOID Number
XCN.2194FNOFamily Name
XCN.330STOGiven Name
XCN.430STOSecond and Further Given Names or Initials Thereof
XCN.520STOSuffix (e.g., JR or III)
XCN.620STOPrefix (e.g., DR)
XCN.75ISB0360Degree (e.g., MD)
XCN.84ISC0297Source Table
XCN.9227HDO0363Assigning Authority
XCN.101IDO0200Name Type Code
XCN.111STOIdentifier Check Digit
XCN.123IDC0061Check Digit Scheme
XCN.135IDO0203Identifier Type Code
XCN.14227HDOAssigning Facility
XCN.151IDO0465Name Representation Code
XCN.16483CEO0448Name Context
XCN.1753DRBName Validity Range
XCN.181IDO0444Name Assembly Order
XCN.1926TSOEffective Date
XCN.2026TSOExpiration Date
XCN.21199STOProfessional Suffix
XCN.22705CWEOAssigning Jurisdiction
XCN.23705CWEOAssigning Agency or Department

No message structure in v2.5.1 carries OVR, and no other segment is linked to it here. The standard defines the segment on its own.