The following is a coding example of the 275 Additional Information to Support a Health Care Services Review when providing patient event or service level additional information.
LX*1~
TRN*2*1722634842~
STC*R3:11504-8::LOI~
REF*FJ*1234~
REF*CPT*44397~
DTP*368*D8*20050724~
CAT*AE*HL~
EFI*05~
BIN*52*<levelone xmlns="urn:hl7-org:v3/cda"
xmlns:v3dt …/cda levelone_1.0.attachments.xsd">
X
X
X
</levelone>~ LX Segment
The LX loop denotes the beginning of a separate response or another type of additional information related to the patient event or to a specific service or procedure.
The following is a coding example of the LX segment:
LX*1~
Within the LX, LX01 is the sequence number assigned to identify the group of segments that follow. It is required that the LX01 sequence number start at 1 and increment by 1.
TRN Segment
The Trace Segment (TRN) is a mandatory segment. The TRN segment serves two scenarios. First, the Attachment Control Number, when transmitted in the unsolicited 275 transaction contains the attachment control number submitted in the PWK segment of the 278 transaction. The second scenario involves a solicited response to a request for additional information from a UMO. In this situation, the attachment control number contains the key in the UMO's system to trace and match the response back to the appropriate request for additional information.
The following is a coding example of the TRN segment:
TRN*2*1722634842~
Within the TRN,
TRN01 = 2
The value in TRN01 will be "2" when this transaction is requested.
TRN01 will be "1" when the additional information is unsolicited.
TRN02 = 1722634842
The value shown is the reference identifier assigned by the UMO for this health care services review. This was given in the previous 278 response. The provider will return the value found in this element to the UMO.
When submitting unsolicited additional information to support a 278 Health Care Services Review Request or Notification, the originator of the transaction will replicate the Attachment Control Number that was given in the PWK segment of the 278 transaction.
STC Segment
The purpose of the STC segment in Loop 2000 is for the provider to return the question received from the UMO in the 278 Health Care Services Review Response.
The following is a coding example when responding to a request for additional information contained in the Service level of the 278 response.
STC*R4:11504-8::LOI~
Within the STC,
STC01-1 = R4
This value indicates that the review has been suspended for additional information/ documentation.
STC01-2 = 11504-8
This value is asking for the description of a surgical procedure.
STC01-4 = LOI
This value indicates the table used for STC01-2 was the Logical Observation Identifier Names and Codes (LOINC®) Code List.
REF Segment at Loop 2000
In this example, the REF Segment is used to identify the Service Trace Number and the procedure for which the information in the BIN Segment is submitted. When information for more than one diagnosis or procedure is required to support a health care services review, the detail segments in 2000A, 2100A and 2110A Loops are repeated.
The following are coding examples of the REF segment:
REF*FJ*1234~
Within the REF,
REF01 = FJ
The value FJ indicates that the next element contains the service trace number.
REF02 = 1234
This is the service trace number.
REF*CPT*44397~
Within the REF,
REF01 = CPT
This value indicates that the next data element contains the procedure code.
REF02 = 44397
The value shown is the procedure code that was submitted on the original health care services review.
DTP Segment - Date Additional Information was Submitted
The DTP segment at the start of the 2100A Loop is an important segment. At this location, the DTP segment identifies the date that the information was submitted to the UMO. This segment is required in order to use the BIN segment.
The following is a coded example of the DTP segment at the service line level:
DTP*368*D8*20051024~
Within the DTP,
DTP01 = 368
This value is the date/time qualifier element. When the value is "368", the date found in DTP03 is known to be the submitted date.
DTP02 = D8
This value is the date/time period format qualifier. When this value is "D8", the format of the date in DTP03 is known to be CCYYMMDD.
DTP03 = 20051024
The date represented in DTP03 is the submitted date for this information, as defined by the prior qualifiers.
CAT Segment
The CAT segment conveys the format type of the information that will be in the BIN segment. It is used to identify if the BIN contains an electronic image, a CDA formatted as a human decision variant or computer decision variant.
The following is a coded example of the CAT segment at the service line level:
CAT*AE*HL~
Within the CAT,
CAT01 = AE
This value indicates that the data in the BIN segment is an attachment.
CAT02 = HL
The value shown indicates that data within the BIN is an HL7 message the contents of the BIN Segment are in the HL7 CDA computer decision variant.
EFI Segment
The EFI segment is required in order to use the BIN segment. It is used to convey the sender assigned level of confidentiality that applies to the information found in the following BIN segment.
The following is a coded example of the EFI segment at the service line level:
EFI*05~
Within the EFI,
EFI01 = 05
This value represents that the security level has been defined as personal.
BIN Segment
The BIN segment is used to place additional information. It allows for the use of HL7 messages standard using the 275 transaction as the envelope. This implementation guide assumes the use of the ASCII format. If a format other than ASCII is used, then the appropriate conversions must be applied wherever ASCII is explicitly required. The contents of the BIN segment must be encoded as text.
BIN*52*<levelone xmlns="urn:hl7-org:v3/cda"
xmlns:v3dt …/cda levelone_1.0.attachments.xsd">
X
X
X
</levelone>~ Within the BIN,
BIN01 = 52
This represents the number of bytes of data that will follow.
Senders must ensure that the count in BIN01 is equal to the byte count of the contents in BIN02.
BIN02 is where the HL7 Message standard begins and is ended by the segment delimiter.
It has been noted that line constraints, transfer protocols, zip programs or conversion processes may insert additional control characters such as, line feeds or carriage returns or other special characters into a transaction. If this occurs in BIN02, the sender's stated count in BIN01 may no longer be equal to the received contents of the data in BIN02.