18.3.56 DLT - delta (2A.3.19)

HL7 Component Table - DLT - Delta

Core Framework									Base Standard Profile
Seq#	Description	Interpretation	Flags	Cardinality	Length	C.LEN	Vocabulary	Data Type	Implement	Cardinality	Vocabulary
DLT
1	Normal Range			[0..1]				NR
2	Numeric Threshold			[0..1]				NM
3	Change Computation			[0..1]			computationType (CD VS)	ID			(CS)
4	Days Retained			[0..1]				NM

Definition: Describes the information that controls delta check warnings.

18.3.56.1 Normal Range (NR) (2A.3.19.0)

Definition: Specifies the normal interval of the reference data.

18.3.56.2 Numeric Threshold (NM) (2A.3.19.1)

Definition: The numeric threshold of the change that is detected.

For example the threshold may be set to 10.

18.3.56.3 Change Computation (ID) (2A.3.19.2)

Definition: Specifies if the change is computed as a percent change or as an absolute change. Refer to HL7 Table 0523 - Computation Type for valid values.

18.3.56.4 Days Retained (NM) (2A.3.19.3)

Definition: The length of time in days that the value is retained for computing delta checks.