SHALL contain exactly one [1..1] @classCode="DGIMG" Diagnostic Image (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:81-9240).

SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:81-9241).

When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question

SHALL contain at least one [1..*] id (CONF:81-9242).

SHALL contain exactly one [1..1] code (CONF:81-9244).

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.

This code SHALL contain exactly one [1..1] @code (CONF:81-19225).

Specifies the code system that defines the code.

This code SHALL contain exactly one [1..1] @codeSystem="1.2.840.10008.2.6.1" DCMUID (CONF:81-19227).

The common name of the coding system.

If applicable, a version descriptor defined specifically for the given code system.

A name or title for the code, under which the sending system shows the code value to its users.

The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.

The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.

The text or phrase used as the basis for the coding.

Specifies additional codes that increase the specificity of the the primary code.

A set of other concept descriptors that translate this concept descriptor into other code systems.

SHOULD contain zero or one [0..1] text (CONF:81-9246).

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

For character-based encoding types, this property specifies the character set and character encoding used. The charset shall be identified by an Internet Assigned Numbers Authority (IANA) Charset Registration [] in accordance with RFC 2978 [].

Indicates whether the raw byte data is compressed, and what compression algorithm was used.

The integrity check is a short binary value representing a cryptographically strong checksum that is calculated over the binary data. The purpose of this property, when communicated with a reference is for anyone to validate later whether the reference still resolved to the same data that the reference resolved to when the encapsulated data value with reference was created.

Specifies the algorithm used to compute the integrityCheck value. The cryptographically strong checksum algorithm Secure Hash Algorithm-1 (SHA-1) is currently the industry standard. It has superseded the MD5 algorithm only a couple of years ago, when certain flaws in the security of MD5 were discovered. Currently the SHA-1 hash algorithm is the default choice for the integrity check algorithm. Note that SHA-256 is also entering widespread usage.

For character based information the language property specifies the human language of the text.

Identifies the type of the encapsulated data and identifies a method to interpret or render the data.

The text, if present, SHALL contain exactly one [1..1] @mediaType="application/dicom" (CONF:81-9247).

Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.)

A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data.

The text, if present, SHALL contain exactly one [1..1] reference (CONF:81-9248).

An abbreviated rendition of the full data. A thumbnail requires significantly fewer resources than the full data, while still maintaining some distinctive similarity with the full data. A thumbnail is typically used with by-reference encapsulated data. It allows a user to select data more efficiently before actually downloading through the reference.

SHOULD contain zero or one [0..1] effectiveTime (CONF:81-9250).

If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.

A quantity specifying a point on the axis of natural time. A point in time is most often represented as a calendar expression.

The effectiveTime, if present, SHALL contain exactly one [1..1] @value (CONF:81-9251).

Specifies whether the limit is included in the interval (interval is closed) or excluded from the interval (interval is open).

A code specifying whether the set component is included (union) or excluded (set-difference) from the set, or other set operations with the current set component and the set as constructed from the representation stream up to the current point.

This is the low limit of the interval.

The effectiveTime, if present, SHALL NOT contain [0..0] low (CONF:81-9252).

This is the high limit of the interval.

The effectiveTime, if present, SHALL NOT contain [0..0] high (CONF:81-9253).

The difference between high and low boundary. The purpose of distinguishing a width property is to handle all cases of incomplete information symmetrically. In any interval representation only two of the three properties high, low, and width need to be stated and the third can be derived.

The arithmetic mean of the interval (low plus high divided by 2). The purpose of distinguishing the center as a semantic property is for conversions of intervals from and to point values.

Drawn from concept domain ActSite

• value @ typeCode

MAY contain zero or more [0..*] entryRelationship (CONF:81-9254) such that it

SHALL contain exactly one [1..1] @typeCode="SUBJ" Has Subject (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002 STATIC) (CONF:81-9255).

MAY contain zero or more [0..*] entryRelationship (CONF:81-9257) such that it

SHALL contain exactly one [1..1] @typeCode="RSON" Has Reason (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002 STATIC) (CONF:81-9258).

SHALL contain exactly one [1..1] observationPurpose of Reference Observation (identifier: urn:oid:2.16.840.1.113883.10.20.6.2.9) (CONF:81-15935).

MAY contain zero or more [0..*] entryRelationship (CONF:81-9260) such that it

SHALL contain exactly one [1..1] @typeCode="COMP" Has Component (CodeSystem: HL7ActRelationshipType urn:oid:2.16.840.1.113883.5.1002 STATIC) (CONF:81-9261).

SHALL contain exactly one [1..1] observationReferenced Frames Observation (identifier: urn:oid:2.16.840.1.113883.10.20.6.2.10) (CONF:81-15936).