HL7 - REFACTORED

IIM - Inventory Item Master Segment

The Inventory Item Master segment (IIM) contains information about the stock of product that can be used to fulfill an ordered test/service. All of the fields in this segment describe the test/service and other basic attributes pertaining to Service Item defined within an Other Observation/Service Item master file. This segment is related to centrally stocked or supply management concerns.

HL7 Attribute Table - IIM - Inventory Item Master Segment
Seq#	Data Element Name	DataType	Usage	Vocabulary	Cardinality	Item #	C.LEN	Flags
IIM
1	Primary Key Value - IIM	CWE	R		[1..1]	01897
2	Service Item Code	CWE	R		[1..1]	01799
3	Inventory Lot Number	ST	O		[0..1]	01800	250	#
4	Inventory Expiration Date	DTM	O		[0..1]	01801
5	Inventory Manufacturer Name	CWE	O		[0..1]	01802
6	Inventory Location	CWE	O		[0..1]	01803
7	Inventory Received Date	DTM	O		[0..1]	01804
8	Inventory Received Quantity	NM	O		[0..1]	01805	12	#
9	Inventory Received Quantity Unit	CWE	O	0818 Package	[0..1]	01806
10	Inventory Received Item Cost	MO	O		[0..1]	01807
11	Inventory On Hand Date	DTM	O		[0..1]	01808
12	Inventory On Hand Quantity	NM	O		[0..1]	01809	12	#
13	Inventory On Hand Quantity Unit	CWE	O	0818 Package	[0..1]	01810
14	Procedure Code	CNE	O		[0..1]	00393
15	Procedure Code Modifier	CNE	O		[0..*]	01316

IIM-1: Primary Key Value - IIM (CWE) 01897

Definition: This field contains the code assigned by the institution for the purpose of uniquely identifying an inventoried item. It is the identifying key value, and must match MFE-4 Primary Key Value - MFE.

IIM-2: Service Item Code (CWE) 01799

Definition: This field contains the identifier of the service item. It relates the inventory item of this message to an entry in an Other Observation/Service Item master file.

IIM-3: Inventory Lot Number (ST) 01800

Definition: This field contains the lot number of the service item in inventory.

Note: The lot number is the number printed on the label attached to the item or container holding the substance. If the substance is a vaccine, for example, and a diluent is required, a lot number may appear on the vial containing the diluent; however, any such identifier associated with a diluent is not the identifier of interest. The substance lot number should be reported, not that of the diluent.

IIM-4: Inventory Expiration Date (DTM) 01801

Definition: This field contains the expiration date of the service item in inventory.

Note: Expiration date does not always have a "day" component; therefore, such a date may be transmitted as YYYYMM.

IIM-5: Inventory Manufacturer Name (CWE) 01802

Definition: This field contains the manufacturer of the service item in inventory.

IIM-6: Inventory Location (CWE) 01803

Definition: This field contains the location of the inventory. As an implementation consideration, this location can have a range of specificity. The location can be very general, e.g., a facility where the inventory is warehoused, or very specific, e.g., a shelf location.

IIM-7: Inventory Received Date (DTM) 01804

Definition: This field contains the most recent date that the product in question was received into inventory.

IIM-8: Inventory Received Quantity (NM) 01805

Definition: This field contains the quantity of this inventory item that was received on the date specific in IIM-7 Inventory Received Date.

IIM-9: Inventory Received Quantity Unit (CWE) 01806

Definition: This field specifies the unit for IIM-8 Inventory Received Quantity and IIM-10 Inventory Received Item Cost.

IIM-10: Inventory Received Item Cost (MO) 01807

Definition: This field contains the per-unit cost of the inventory item at the time of receipt. IIM-9 Inventory Received Quantity Unit specifies the per-unit basis of this field.

IIM-11: Inventory On Hand Date (DTM) 01808

Definition: This field specifies the most recent date that an inventory count for the inventory item was performed.

IIM-12: Inventory On Hand Quantity (NM) 01809

Definition: This field contains the quantity of this inventory item that was available for issue/use as of the date specified in IIM-11 Inventory on Hand Date. No adjustment has been made for subsequent use.

IIM-13: Inventory On Hand Quantity Unit (CWE) 01810

Definition: This field specifies the unit for IIM-12 Inventory on Hand Quantity.

IIM-14: Procedure Code (CNE) 00393

Definition: This field contains a unique identifier assigned to the service item, if any, associated with the charge. In the United States this is often the HCPCS code. Refer to Externally Defined Table 0088 - Procedure Code in Chapter 2C, Code Tables, for suggested values. This field is a CNE data type for compatibility with clinical and ancillary systems.

As of v2.6, the known applicable external coding systems include those in the table below. If the code set you are using is in this table, then you must use that designation.

Procedure Code Coding Systems

Coding System	Description	Comment
C4	CPT-4	American Medical Association, P.O. Box 10946, Chicago IL 60610.
C5	CPT-5	(under development – same contact as above)
HCPCS	CMS (formerly HCFA) Common Procedure Coding System	HCPCS: contains codes for medical equipment, injectable drugs, transportation services, and other services not found in CPT4.
HPC	CMS (formerly HCFA) Procedure Codes (HCPCS)	Health Care Financing Administration (HCFA) Common Procedure Coding System (HCPCS) including modifiers.

IIM-15: Procedure Code Modifier (CNE) 01316

Definition: This field contains the procedure code modifier to the procedure code reported in IIM-14 Procedure Code, when applicable. Procedure code modifiers are defined by USA regulatory agencies such as CMS and the AMA. Multiple modifiers may be reported. Refer to Externally defined Table 0340 - Procedure Code Modifier in Chapter 2C, Code Tables, for suggested values.