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RXR - Pharmacy/Treatment Route Segment

The Pharmacy/Treatment Route segment contains the alternative combination of route, site, administration device, and administration method that are prescribed as they apply to a particular order. The pharmacy, treatment staff and/or nursing staff has a choice between the routes based on either their professional judgment or administration instructions provided by the physician.

HL7 Attribute Table - RXR - Pharmacy/Treatment Route Segment
Seq# DataElement Description Must Implement Flags Cardinality Length C.LEN Vocabulary DataType
1 00309 Route SHALL [1..1] CWE
2 00310 Administration Site [0..1] CWE
3 00311 Administration Device [0..1] CWE
4 00312 Administration Method [0..1] CWE
5 01315 Routing Instruction [0..1] CWE
6 01670 Administration Site Modifier [0..1] CWE

RXR-1: Route (CWE) 00309

Definition: This field is the route of administration.

Some current "route codes," such as some of the NDC-derived codes include the site already. In such cases, the entire code can be included in this field as a "locally-defined code" for the CWE data type. Refer to User-Defined Table 0162 - Route of Administration in Chapter 2C, Code Tables, for valid values.

RXR-2: Administration Site (CWE) 00310

Definition: This field contains the site of the administration route. When using a post-coordinated code table in this field, RXR-6 Administration Site may be used to modify the meaning of this field.

Refer to HL7 Table 0550 – Body Parts in Chapter 2C, Code Tables, for valid values. Other appropriate external code sets (e.g., SNOMED) may also be employed.

RXR-3: Administration Device (CWE) 00311

Definition: This field contains the mechanical device used to aid in the administration of the drug or other treatment. Common examples are IV-sets of different types. Refer to User-defined Table 0164 - Administration device in Chapter 2C, Code Tables, for valid entries.

RXR-4: Administration Method (CWE) 00312

Definition: This field identifies the specific method requested for the administration of the drug or treatment to the patient. Refer To User-defined Table 0165 – Administration Method in Chapter 2C, Code Tables, for valid values.

RXR-5: Routing Instruction (CWE) 01315

Definition: This field provides instruction on administration routing, especially in cases where more than one route of administration is possible. A typical case would be designating which IV line should be used when more than one IV line is a possible route for injection. Refer to Table 0766 - Routing Instruction in Chapter 2C for valid values.

RXR-6: Administration Site Modifier (CWE) 01670

Definition: This field contains a modifier which modifies the meaning of RXR-2 Administration Site.

The code table used in this field is dependent upon the code table used in RXR-2 Administration site. If RXR-2 employs HL7 Table 0550 – Body Parts, then this field may only be populated with values from HL7 Table 0495 – Body Parts Modifier. In the case of other code sets (e.g., SNOMED) in RXR-2, RXR-6 may only be populated if modifiers are defined within, or related to, that code set.

Condition Rule: This field may only be populated if RXR-2 Administration Site is populated. This field is not required if RXR-2 is populated.