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OM7 - Additional Basic Attributes Segment (Fields That Apply To Most Observations/Services)

The Technical Steward for the OM7 segment is Orders and Observations.

The OM7 segment contains additional basic attributes that apply to the definition of most observations/services.

HL7 Attribute Table - OM7 - Additional Basic Attributes Segment (Fields That Apply to Most Observations/Services)
Seq# Data Element Name DataType Usage Vocabulary Cardinality Item # Length C.LEN Flags
OM7
1 Sequence Number - Test/Observation Master File NM R [1..1] 00586 4 #
2 Universal Service Identifier CWE R [1..1] 00238
3 Category Identifier CWE O [0..*] 01481
4 Category Description TX O [0..1] 01482 200 #
5 Category Synonym ST O [0..*] 01483 200 #
6 Effective Test/Service Start Date/Time DTM O [0..1] 01484
7 Effective Test/Service End Date/Time DTM O [0..1] 01485
8 Test/Service Default Duration Quantity NM O [0..1] 01486 5 #
9 Test/Service Default Duration Units CWE O [0..1] 01487
10 Test/Service Default Frequency CWE O [0..1] 01488 60 #
11 Consent Indicator ID O [0..1] 01489 [1..1]
12 Consent Identifier CWE O [0..1] 01490
13 Consent Effective Start Date/Time DTM O [0..1] 01491
14 Consent Effective End Date/Time DTM O [0..1] 01492
15 Consent Interval Quantity NM O [0..1] 01493 5 #
16 Consent Interval Units CWE C [0..1] 01494
17 Consent Waiting Period Quantity NM O [0..1] 01495 5 #
18 Consent Waiting Period Units CWE C [0..1] 01496
19 Effective Date/Time of Change DTM O [0..1] 00607
20 Entered By XCN B [0..1] 00224
21 Orderable-at Location PL B [0..*] 01497
22 Formulary Status CWE O [0..1] 01498 1 #
23 Special Order Indicator ID O [0..1] 01499 [1..1]
24 Primary Key Value - CDM CWE O [0..*] 01306

OM7-1: Sequence Number - Test/Observation Master File (NM) 00586

Definition: This field contains the same value as the sequence number of the associated OM1 segment.

OM7-2: Universal Service Identifier (CWE) 00238

Definition: This field contains the producer's usual or preferred identification of the test or service.

OM7-3: Category Identifier (CWE) 01481

Definition: This field contains the category name (term given to a group of service items for the purpose of classification). Examples: Laboratory, Pharmacy, Diagnostic Imaging, etc. Refer to User-defined Table 0412 - Category Identifier in Chapter 2C, Code Tables, for suggested values.

OM7-4: Category Description (TX) 01482

Definition: This field contains a text description for the category of the test/service item.

Example: The category "Pathology" may be described as a specialty practice concerned with all aspects of disease, with special reference to the essential natural cause and development of abnormal conditions, as well as the structural and functional changes that result from the disease process.

OM7-5: Category Synonym (ST) 01483

Definition: This field contains an alternate name(s) for the category of the test/service. Example: The category "Radiology" is a synonym name for the category "Diagnostic Imaging".

OM7-6: Effective Test/Service Start Date/Time (DTM) 01484

Definition: This field contains the date and time that the service item is available to be ordered, performed, etc.

OM7-7: Effective Test/Service End Date/Time (DTM) 01485

Definition: This field contains the date and time that the service item is no longer authorized to be ordered, performed, etc.

OM7-8: Test/Service Default Duration Quantity (NM) 01486

Definition: This field indicates the default duration quantity for the service.

OM7-9: Test/Service Default Duration Units (CWE) 01487

Definition: This field indicates the default duration units for the service. Refer to Table 0663 - Test/Service Default Duration Units in Chapter 2C for valid values.

OM7-10: Test/Service Default Frequency (CWE) 01488

Definition: This field indicates the default frequency (how often) the service would be ordered for or performed on.

OM7-11: Consent Indicator (ID) 01489

Definition: This field indicates if a consent is needed for the service item. Refer to HL7 Table 0136 - Yes/no Indicator in Chapter 2C, Code Tables.

OM7-12: Consent Identifier (CWE) 01490

Definition: This field contains the identifier for the consent specified for the service item. Refer to User-defined Table 0413 - Consent Identifier in Chapter 2C, Code Tables, for suggested values.

OM7-13: Consent Effective Start Date/Time (DTM) 01491

Definition: This field contains the date and time the consent is valid for the service item.

OM7-14: Consent Effective End Date/Time (DTM) 01492

Definition: This field contains the date and time the consent is no longer valid for the test/service.

OM7-15: Consent Interval Quantity (NM) 01493

Definition: This field specifies the period of time for which a consent is valid for a specific service item.

OM7-16: Consent Interval Units (CWE) 01494

Definition: This field specifies the unit of time for OM7-15 - Consent Interval Quantity. Refer to User-defined Table 0414 - Units of Time in Chapter 2C, Code Tables, for suggested values.

Note: If Consent Interval Quantity is specified, then Consent Interval Unit is required.


OM7-17: Consent Waiting Period Quantity (NM) 01495

Definition: This field contains the time period between the time the consent is signed and the procedure can be performed.

OM7-18: Consent Waiting Period Units (CWE) 01496

Definition: This field specifies the unit of time for OM7-17 - Consent Waiting Period Quantity. Refer to User-defined Table 0414 - Units of time in Chapter 2C, Code Tables, for suggested values.

Note: If Consent Waiting Period Quantity is specified, then Consent Waiting Period Unit is required.


OM7-19: Effective Date/Time of Change (DTM) 00607

Definition: This field contains the date and time of the last change in the test procedure that would make previous results incompatible with new results.

OM7-20: Entered By (XCN) 00224

Note: This field is deprecated and retained for backward compatibility as of v 2.8.

Definition: This field contains the identity of the person who actually keyed the service item into the application. It provides an audit trail in case the request is entered incorrectly and the ancillary department needs to clarify the request.

OM7-21: Orderable-at Location (PL) 01497

Note: This field is deprecated and retained for backward compatibility as of v 2.8.

Definition: This field contains the location(s) where the test/service can be ordered.

OM7-22: Formulary Status (CWE) 01498

Definition: This field indicates whether or not the service (pharmaceutical) is in the formulary. Refer to User-defined Table 0473 - Formulary Status in Chapter 2C, Code Tables, for valid values.

OM7-23: Special Order Indicator (ID) 01499

Definition: This field indicates whether or not the service (pharmaceutical) is a special order. Refer to HL7 Table 0136 - Yes/no Indicator in Chapter 2C, Code Tables, for valid values.

Y    This is a special order.

N    This is not a special order

OM7-24: Primary Key Value - CDM (CWE) 01306

Definition: Allows the ability to associate a Service/Test/Observation item with a CIM (charge item master). This field contains the corresponding value of CDM-1 for the CIM being linked to. It is possible to allow multiple charge items to a single Service/Test/Observation item.