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The BLG segment is used to provide billing information, on the ordered service, to the filling application.

HL7 Attribute Table - BLG - Billing Segment

Seq#	DataElement	Description	Must Implement	Flags	Cardinality	Length	C.LEN	Vocabulary	DataType
BLG
1	00234	When to Charge			[0..1]			0100 Invocation event	CCD
2	00235	Charge Type			[0..1]	[2..2]		0122 Charge Type	ID
3	00236	Account ID			[0..1]				CX
4	01645	Charge Type Reason			[0..1]			0475 Charge Type Reason	CWE

Definition: This field specifies when to charge for the ordered service. Refer to HL7 Table 0100 – Invocation event in Chapter 2C, Code Tables, for valid values.

Definition: This field identifies someone or something other than the patient to be billed for this service. It is used in conjunction with BLG-3-account ID. Refer to HL7 Table 0122 – Charge Type in Chapter 2C, Code Tables, for valid values.

Definition: This field identifies the account to be billed. It is used in conjunction with BLG-2-charge type. Refer to HL7 Table 0061 – Check digit scheme in Chapter 2C, Code Tables.

Definition: This field explains the choice of and provides the clinical rationale for the selected charge type identified in BLG-2. Refer to User-defined Table 0475 – Charge Type Reason in Chapter 2C, code Tables, for suggested values.