HL7 v2.5.1 Specificationsv2.5.1

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OM3 segment

The Technical Steward for the OM3 segment is ORDERS. This segment applies to free text and other non-numeric data types. 8.8.10.0 OM3 Field Definitions 8.8.10.1 OM3-1 Sequence Number - Test/Observation Master File (NM) 00586 Definition: This field contains the same value as the sequence number of the associated OM1 segment. 8.8.10.2 OM3-2 Preferred Coding System (CE) 00636

The shape of one line

segmentOM3|OM3-1Sequence Number -…|OM3-2Preferred Coding System|OM3-3Valid Coded "Answers"|OM3-4Normal Text/Codes for…|OM3-5Abnormal Text/Codes for…|OM3-6Critical Text/Codes for…|OM3-7Value Type

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 OM3-2 and its value arrives as OM3-1, so the receiver stores Preferred Coding System as Sequence Number - Test/Observation Master File.

This page carries the OM3 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 OM3.

Every field

SEQLENDTOPTRP/#TBL#ITEM#Element nameCardinality
OM3-14NMO00586Sequence Number - Test/Observation Master File0..1
250CEO999900636Preferred Coding System0..1

OM3-2 is a CE, which holds 6 components separated by carets.

SEQLENDTOPTTBL#Component name
CE.120STOIdentifier
CE.2199STOText
CE.320IDO0396Name of Coding System
CE.420STOAlternate Identifier
CE.5199STOAlternate Text
CE.620IDO0396Name of Alternate Coding System
250CEO999900637Valid Coded "Answers"0..1

OM3-3 is a CE, which holds 6 components separated by carets.

SEQLENDTOPTTBL#Component name
CE.120STOIdentifier
CE.2199STOText
CE.320IDO0396Name of Coding System
CE.420STOAlternate Identifier
CE.5199STOAlternate Text
CE.620IDO0396Name of Alternate Coding System
250CEOY999900638Normal Text/Codes for Categorical Observations0..*

OM3-4 is a CE, which holds 6 components separated by carets.

SEQLENDTOPTTBL#Component name
CE.120STOIdentifier
CE.2199STOText
CE.320IDO0396Name of Coding System
CE.420STOAlternate Identifier
CE.5199STOAlternate Text
CE.620IDO0396Name of Alternate Coding System
250CEOY999900639Abnormal Text/Codes for Categorical Observations0..*

OM3-5 is a CE, which holds 6 components separated by carets.

SEQLENDTOPTTBL#Component name
CE.120STOIdentifier
CE.2199STOText
CE.320IDO0396Name of Coding System
CE.420STOAlternate Identifier
CE.5199STOAlternate Text
CE.620IDO0396Name of Alternate Coding System
250CEOY999900640Critical Text/Codes for Categorical Observations0..*

OM3-6 is a CE, which holds 6 components separated by carets.

SEQLENDTOPTTBL#Component name
CE.120STOIdentifier
CE.2199STOText
CE.320IDO0396Name of Coding System
CE.420STOAlternate Identifier
CE.5199STOAlternate Text
CE.620IDO0396Name of Alternate Coding System
OM3-72IDO012500570Value Type0..1

Message types carrying OM3

OM3 appears in 2 message structures, belonging to 1 message type.