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

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.

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.

(Definition from IIM.3 in Ch. 17)

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

(Definition from ILT.2 in Ch. 17)

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

Note:

(Definition from IIM.4 in Ch. 17)

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

(Definition from ILT.3 in Ch. 17)

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

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

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.

(Definition from IIM.7 in Ch. 17)

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

(Definition from ILT.4 in Ch. 17)

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

(Definition from IIM.8 in Ch. 17)

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

(Definition from ILT.5 in Ch. 17)

Definition: This field contains the quantity of this inventory item that was received on the date specific in ILT-4 Inventory Received Date field.

(Definition from IIM.9 in Ch. 17)

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

(Definition from ILT.6 in Ch. 17)

Definition: This field specifies the unit for the Inventory Received Quantity. See User-defined Table 0818 – Package as described in PKG-2 Packaging Units and as presented in Chapter 2C, Code Tables, for suggested values.

(Definition from IIM.10 in Ch. 17)

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.

(Definition from ILT.7 in Ch. 17)

Definition: This field contains the per-unit cost of the inventory item at the time of receipt. ILT-6 Inventory Received Quantity Unit field specifies the per-unit basis of this field.

(Definition from IIM.11 in Ch. 17)

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

(Definition from ILT.8 in Ch. 17)

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

(Definition from IIM.12 in Ch. 17)

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.

(Definition from ILT.9 in Ch. 17)

Definition: This field contains the quantity of this inventory item that was available for issue/use as of the date specified in ILT-8 Inventory on Hand Date field. No adjustment has been made for subsequent use.

(Definition from IIM.13 in Ch. 17)

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

(Definition from ILT.10 in Ch. 17)

Definition: This field contains the quantity of this inventory item that was available for issue/use as of the date specified in ILT-8 Inventory on Hand Date field. No adjustment has been made for subsequent use. See User-defined Table 0818 – Package as described in PKG-2 Packaging Units and as presented in Chapter 2C, Code Tables, for suggested values.

(Definition from OBR.44 in Ch. 4)

Definition: This field contains a unique identifier assigned to the procedure, if any, associated with the charge. Refer to Externally-defined table 0088 – Procedure code in Chapter 2C, Code Tables, for suggested values. This field is a coded data type for compatibility with clinical and ancillary systems.

As of version 2.6, applicable external coding systems include those in the referenced table. If the code set used is in the referenced table, then the coding scheme designation in the table shall be used.

(Definition from FT1.25 in Ch. 6)

Definition: This field contains a unique identifier assigned to the procedure, if any, associated with the charge. Refer to Externally-defined Table 0088 - Procedure Code in Chapter 2C, Code Tables, for suggested values. This field is a coded data type for compatibility with clinical and ancillary systems.

As of v 2.6, 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 (from HL7 Table 0396)

Code	Description	Comment / Source
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.
I10P	ICD-10 Procedure Codes	Procedure Coding System (ICD-10-PCS.) See http://www/hcfa.gov/stats/icd10.icd10.htm for more information.

(Definition from PR1.3 in Ch. 6)

Definition: This field contains a unique identifier assigned to the procedure. 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.

(Definition from OBR.44 in Ch. 7)

Definition: This field contains a unique identifier assigned to the procedure, if any, associated with the charge. Refer to Externally-defined table 0088 – Procedure code in Chapter 2C, Code Tables, for suggested values. This field is a coded data type for compatibility with clinical and ancillary systems.

As of version 2.6, applicable external coding systems include those in the referenced table. If the code set used is in the referenced table, then the coding scheme designation in the table shall be used.

(Definition from CDM.7 in Ch. 8)

Definition: This field contains the procedure code for procedure, if any, associated with this charge description. Repeating field allows for different procedure coding systems such as CPT4, ICD9. Coded entry made up of code plus coding schema. Refer to Externally-defined Table 0088 - Procedure Code in Chapter 2C, Code Tables, for suggested values.

(Definition from IIM.14 in Ch. 17)

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.

(Definition from ITM.27 in Ch. 17)

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 for suggested values. This field is a CNE data type for compatibility with clinical and ancillary systems. Refer to HL7 Table 0088 – Procedure Coding Systems in Chapter 2C, Code Tables, for valid values.

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.

(Definition from SCD.32 in Ch. 17)

Definition: The unique identifier indicating the type of procedure performed on the patient with the supplies being sterilized.

Refer to HL7 Table 0088 – Procedure Code in Chapter 2C, Code Tables, for suggested values.

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

(Definition from OBR.45 in Ch. 4)

Definition: This field contains the procedure code modifier to the procedure code reported in OBR-44-procedure code, when applicable. Procedure code modifiers are defined by regulatory agencies such as CMS and the AMA. Multiple modifiers may be reported. The modifiers are sequenced in priority according to user entry. In the USA, this is a requirement of the UB and the 1500 claim forms. Multiple modifiers are allowed and the order placed on the form affects reimbursement. Refer to Externally- defined table 0340 – Procedure code modifier in Chapter 2C, Code Tables, for suggested values.

Usage Rule: This field can only be used if OBR-44 – procedure code contains certain procedure codes that require a modifier in order to be billed or performed. For example, HCPCS codes that require a modifier to be precise.

As of version 2.6, applicable external coding systems include those in the referenced table. If the code set used is in the referenced table, then the coding scheme designation in the table shall be used.

(Definition from FT1.26 in Ch. 6)

Definition: This field contains the procedure code modifier to the procedure code reported in FT1-25 - Procedure Code, when applicable. Procedure code modifiers are defined by regulatory agencies such as CMS and the AMA. Multiple modifiers may be reported. The modifiers are sequenced in priority according to user entry. This is a requirement of the UB and the 1500 claim forms. Multiple modifiers are allowed and the order placed on the form affects reimbursement. Refer to Externally-defined Table 0340 - Procedure Code Modifier in Chapter 2C, Code Tables, for suggested values.

Usage Rule: This field can only be used if FT1-25 - Procedure Code contains certain procedure codes that require a modifier in order to be billed or performed. For example, HCPCS codes that require a modifier to be precise.

As of v 2.6, 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 Modifier Coding Systems (From HL7 Table 0396)

Code	Description	Comment / Source
CPTM	CPT Modifier Code	Available for the AMA at the address listed for CPT above. These codes are found in Appendix A of CPT 2000 Standard Edition. (CPT 2000 Standard Edition, American Medical Association, Chicago, IL).
HPC	CMS (formerly HCFA )Procedure Codes (HCPCS)	Health Care Financing Administration (HCFA) Common Procedure Coding System (HCPCS) including modifiers.
I10P	ICD-10 Procedure Codes	Procedure Coding System (ICD-10-PCS.) See http://www/hcfa.gov/stats/icd10.icd10.htm for more information.
I9C	ICD-9CM	Commission on Professional and Hospital Activities, 1968 Green Road, Ann Arbor, MI 48105 (includes all procedures and diagnostic tests).
ICD10AM	ICD-10 Australian modification
ICD10CA	ICD-10 Canada

(Definition from PR1.16 in Ch. 6)

Definition: This field contains the procedure code modifier to the procedure code reported in field 3, when applicable. Procedure code modifiers are defined by 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.

(Definition from OBR.45 in Ch. 7)

Definition: This field contains the procedure code modifier to the procedure code reported in OBR-44-procedure code, when applicable. Procedure code modifiers are defined by regulatory agencies such as CMS and the AMA. Multiple modifiers may be reported. The modifiers are sequenced in priority according to user entry. In the USA, this is a requirement of the UB and the 1500 claim forms. Multiple modifiers are allowed and the order placed on the form affects reimbursement. Refer to Externally- defined table 0340 – Procedure code modifier in Chapter 2C, Code Tables, for suggested values.

Usage Rule: This field can only be used if OBR-44 – procedure code contains certain procedure codes that require a modifier in order to be billed or performed. For example, HCPCS codes that require a modifier to be precise.

As of version 2.6, applicable external coding systems include those in the referenced table. If the code set used is in the referenced table, then the coding scheme designation in the table shall be used.

(Definition from IIM.15 in Ch. 17)

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.

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.

(Definition from ITM.28 in Ch. 17)

Definition: This field contains the procedure code modifier to the procedure code reported in ITM-27, 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.