TCC - Test Code Configuration Segment

The test (e.g., analyte) code configuration segment is the data necessary to maintain and transmit information concerning the test entity codes that are being used throughout the "automated system."

HL7 Attribute Table - TCC - Test Code Configuration Segment

Seq#	Data Element Name	DataType	Usage	Vocabulary	Cardinality	Item #	Length	C.LEN	Flags
TCC
1	Universal Service Identifier	CWE	R	0612	[1..1]	00238
2	Equipment Test Application Identifier	EI	R		[1..1]	01408
3	Specimen Source		W		[0..1]	00249
4	Auto-Dilution Factor Default	SN	O		[0..1]	01410
5	Rerun Dilution Factor Default	SN	O		[0..1]	01411
6	Pre-Dilution Factor Default	SN	O		[0..1]	01412
7	Endogenous Content of Pre-Dilution Diluent	SN	O		[0..1]	01413
8	Inventory Limits Warning Level	NM	O		[0..1]	01414		10	#
9	Automatic Rerun Allowed	ID	O	0136(R) Yes/no Indicator(Required)	[0..1]	01415	[1..1]
10	Automatic Repeat Allowed	ID	O	0136(R) Yes/no Indicator(Required)	[0..1]	01416	[1..1]
11	Automatic Reflex Allowed	ID	O	0136(R) Yes/no Indicator(Required)	[0..1]	01417	[1..1]
12	Equipment Dynamic Range	SN	O		[0..1]	01418
13	Units	CWE	O	0623	[0..1]	00574
14	Processing Type	CWE	O	0388(R) Processing Type(Required)	[0..1]	01419
15	Test Criticality	CWE	O		[0..1]	03313	[705..*]

TCC-1: Universal Service Identifier (CWE) 00238

Definition: This field identifies the test code that information is being transmitted about. The alternate elements represent the test code identifier that has been assigned by the manufacturer to this particular test code. Refer to Table 0787 - Universal Service Identifier in Chapter 2C for valid values.

TCC-2: Equipment Test Application Identifier (EI) 01408

Definition: This field identifies the test application code assigned by the manufacturer of the equipment or reagents and associated with performing of the particular test specified by the Universal Test Identifier.

TCC-3: Specimen Source () 00249

Attention: As of version 2.5 this field was deprecated and retained for backward compatibility only and withdrawn as of v2.7.

TCC-4: Auto-Dilution Factor Default (SN) 01410

Definition: This field is the value that is to be used as the default factor for automatically diluting a specimen by an instrument for this particular test code. (See examples in definition of 13.4.3.29, "SAC-29 Dilution Factor (SN) 01356" in, "Specimen Container Detail Segment.")

TCC-5: Rerun Dilution Factor Default (SN) 01411

Definition: This field is the value that is to be used as the default factor for automatically diluting a specimen in case of rerun for this particular test code.

TCC-6: Pre-Dilution Factor Default (SN) 01412

Definition: This field is the value that is to be used as the default factor for a specimen that is delivered to the laboratory automation system as pre-diluted for this particular test code.

TCC-7: Endogenous Content of Pre-Dilution Diluent (SN) 01413

Definition: This field represents a baseline value for the measured test that is inherently contained in the diluent. In the calculation of the actual result for the measured test, this baseline value is normally considered.     

TCC-8: Inventory Limits Warning Level (NM) 01414

Definition: This field is the value that is to be used as the threshold for initiating inventory warning-level messages.

TCC-9: Automatic Rerun Allowed (ID) 01415

Definition: This field identifies whether or not automatic reruns are to be initiated on specimens for this particular test code. Refer to HL7 Table 0136 -Yes/no Indicator for valid values.

TCC-10: Automatic Repeat Allowed (ID) 01416

Definition: This field identifies whether or not automatic repeat testing is to be initiated on specimens for this particular test code. Refer to HL7 Table 0136 -Yes/no Indicator for valid values.

TCC-11: Automatic Reflex Allowed (ID) 01417

Definition: This field identifies whether or not automatic or manual reflex testing is to be initiated on specimens for this particular test code. Refer to HL7 Table 0136 -Yes/no Indicator for valid values.

TCC-12: Equipment Dynamic Range (SN) 01418

Definition: This is the range over which the equipment can produce results.

TCC-13: Units (CWE) 00574

Definition: This field is the units that have a data type of CWE. The default coding system for the units codes consists of the ISO+ abbreviation for a single case unit (ISO 2955-83) plus extensions, that do not collide with ISO abbreviations (see Chapter 7, section 7.4.2.6). We designate this coding system as ISO+. Both the ISO unit's abbreviations and the extensions are defined in Chapter 7, section 7.4.2.6.2 and listed in Figure 7-9. The ISO+ abbreviations are the codes for the default coding system. Consequently, when ISO+ units are being used, only ISO+ abbreviations need be sent, and the contents of the units field will be backward compatible to HL7 Version 2.1. For more information on this field see reference Chapter 7, section 7.4.2.6.

These units apply to fields "Endogenous content of pre-dilution diluent" and "Equipment dynamic range".

Refer to Table 0788 - Units in Chapter 2C for valid values.

TCC-14: Processing Type (CWE) 01419

Definition: This field identifies the processing type that applies to this test code. If this attribute is omitted, then regular production is the default. Refer to HL7 Table 0388 – Processing Type in Chapter 2C, Code Tables, for valid values.

TCC-15: Test Criticality (CWE) 03313

Definition: This field identifies the test the Test Criticality. The values in this field are used for decisions, which tests should be performed, in case of, e.g., insufficient specimen volume.
The data type is CWE because its meaning is a coded value. However, in order to make the processing decisions easy the content can be a sequential number of the test sorted according to the criticality assigned by the lab. The lower numbers are more critical than higher numbers.