# description
The order of diagnosis importance (1 = highest in importance), from the clinical perspective, may be used in billing.

# snapshot.element[].short
Primary Diagnosis of this encounter (priority order - 1 = highest)

# snapshot.element[].definition
The order of diagnosis importance (1 = highest in importance), from the clinical perspective, may be used in billing.

# snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# snapshot.element[].definition
unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# snapshot.element[].short
Additional Content defined by implementations

# snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. In order to make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# snapshot.element[].definition
Source of the definition for the extension code - a logical name or a URL.

# snapshot.element[].comment
The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

# snapshot.element[].definition
Value of extension - may be a resource or one of a constrained set of the data types (see Extensibility in the spec for list).

# differential.element[].short
Primary Diagnosis of this encounter (priority order - 1 = highest)

# differential.element[].definition
The order of diagnosis importance (1 = highest in importance), from the clinical perspective, may be used in billing.