DICOM Attribute

Filter-by Operator (0072,0406)

Keyword
FilterByOperator
VR
CS
VM
1

Definition

Operation to be applied between the value(s) in the ("selector"), and the value(s) of the Attribute identified by Selector Attribute (0072,0026) (or the value implied by the Filter-by Category (0072,0402)) in each image of the Image Set. See . Required if Filter-by Category (0072,0402) is present, or if Selector Attribute (0072,0026) is present and Filter-by Attribute Presence (0072,0404) is not present. Enumerated Values: RANGE_INCL all values lie within the specified range, or are equal to the endpoints; applies only to numeric Selector Attribute (0072,0026) Values; two values shall be present in the selector, the first of which is less than or equal to the second RANGE_EXCL all values lie outside the specified range, and are not equal to the endpoints; applies only to numeric Selector Attribute (0072,0026) Values; two values shall be present in the selector, the first of which is less than or equal to the second GREATER_OR_EQUAL all values are greater than or equal to the Value of the selector; applies only to numeric Selector Attribute (0072,0026) LESS_OR_EQUAL all values are less than or equal to the Value of the selector; applies only to numeric Selector Attribute (0072,0026) GREATER_THAN all values are greater than the Value of the selector; applies only to numeric Selector Attribute (0072,0026) LESS_THAN all values are less than the Value of the selector; applies only to numeric Selector Attribute (0072,0026) MEMBER_OF one of the values in the image is present in the values of the selector; if one value is present in each, this is an "equal to" operator NOT_MEMBER_OF none of the values in the image is present in the values of the selector; if one value is present in each, this is a "not equal to" operator

From NEMA PS3.3 §C.23.3.

Attribute Metadata

Tag
(0072,0406)
Keyword
FilterByOperator
Name
Filter-by Operator
Value Representation (VR)
CS
Value Multiplicity (VM)
1
Status
Active
Source
NEMA PS3.6 (table_6-1)

This attribute is part of the current DICOM Standard. Its value representation is CS with multiplicity 1.

Used in 1 Module

This attribute uses the CS Value Representation. Multiplicity 1 governs how many values may be encoded.

Integration Notes

Real-world integration guidance for engineers implementing this attribute in Mirth Connect, FHIR gateways, HL7 v2 bridges, and cloud DICOM services. Authoritative source data where available; reference examples and operational notes where they add value.

FHIR Mapping

No direct FHIR ImagingStudy mapping published for this attribute. Some tags map indirectly via the Patient, Endpoint, or ImagingSelection resources — Phase 2b will expand coverage to those.

HL7 v2 Equivalent

No standard HL7 v2 equivalent published for this attribute. Imaging-only attributes (Image Pixel data, technical acquisition parameters, modality-specific values) typically have no HL7 v2 carrier.

Cloud DICOM Support

AWS HealthImaging, Azure DICOM, and GCP Healthcare DICOM coverage rolls out by attribute. The QIDO-RS matching keys + Patient/Study/Series core (~50 attributes) are documented; lower-traffic attributes will be added as Saga teams encounter them in production.

Real-World Sample Values

No representative sample value available — this attribute isn't present in the de-identified pydicom fixture set. Add a fixture covering this attribute to expand coverage.

Mirth Connect Example

JavaScript transformer snippets for the most-queried tags will be added as coverage expands.

Common Operational Errors

Operational error patterns for the most-queried tags will be added as coverage expands.

DICOM Integration Services

Saga IT builds production DICOM integrations across Mirth Connect, FHIR gateways, and cloud imaging platforms. If you're working with FilterByOperator or the broader (0072,0406) context: