LINKMED® Interface Tutorial: HL7 ADT Segments and Fields
6.3 EVN-Event Type

Each ADT Message sent is associated with an event type (MSH_9_2).
The EVN segment is not required for HL7 message version 2.3.1 or later.

Seq
Element Name
Req
Len
Comments
0
Segment ID (EVN)
R
3
"EVN"
1
Event Type Code
R
3
A01, A02, A03, A08, etc...
2
Date/Time of Event
O
19
YYYYMMDDhhmm[ss]
Date and time of event
3
Date/Time of Planned Event
O
19
YYYYMMDDhhmm[ss]
4
Event Reason Code
O
3
 
5
Operator ID
O
5
 
6
EventOccurred
O
26
 
7
EventFacility
O
241
 

6.4 PID-Patient Identification Segment

Since the PID segment contains permanent identifying and demographic information about a patient, it is used by the applications as the main means of communicating this information.

Seq
Element Name
Req
 
Len
Comments
0
Segment ID (PID)
R
3
"PID"
1
Set ID - Patient ID
O
4
 
2
Patient ID (External ID)
O
16
 
3
Patient ID (Internal ID)
R
16
Medical Record Number
4
Alternate Patient ID/Tote ID
O
12
 
5
Patient Name
R
48
LName^FName^MName
6
Mother's Maiden Name
O
30
 
7
Date of Birth
O
8
YYYYMMDD [hhmmss]

8

Sex

O

1

F – female,
M – male,
U – unknown

9

Patient Alias

O

48

 

10

Race

O

1

 

11

Patient Address

O

106

Address1^Address2^

City^State^Zip

12

County Code

O

4

 

13

Phone Omber – Home

O

40

 

14

Phone Omber – Business

O

40

 

15

Language – Patient

O

25

 

16

Marital Status

O

1

 

17

Religion

O

3

 

18

Patient Account Omber

R

20

Account/Visit Number

19

SSN Omber – Patient

O

16

 

20

Driver’s License Omber – Patient

O

25

 

21

Mother’s Identification No RX’s In PO

O

20

 

22
PatientEthnicGroup
O
 
20
 
23
PatientBirthPlace
O
 
60
 
24
MultipleBirthIndicator
 
2
 
25
BirthOrder
O
 
2
 
26
PatientCitizenship
O
 
250
 
27
VeteransMilitaryStatus
O
 
250
 
28
PIDNationality
O
 
250
 
29
PatientDateTimeofDeath
O
 
26
YYYYMMDDhhmm[ss]
30
PatientDeathIndicator
O
 
20
 
31
IdentityUnknownIndicator
O
 
20
 
32
IdentityReliabilityCode
O
 
20
 
33
LastUpdateDateTime
O
 
26
YYYYMMDDhhmm[ss]
34
LastUpdateFacility
O
 
241
 
35
SpeciesCode
O
 
250
 
36
BreedCode
O
 
250
 
37
Strain
O
 
80
 
38
ProductionClassCode
O
 
250
 

R = Required, CR = Conditionally Required, O = Optional, N = Numeric, AN = Alpha/Omeric, ID = Segment Identification

6.6 PV1-Patient Visit Segment

The PV1 segment is used by Registration/ADT applications. The PV1 segment is used to communicate information on a visit specific basis. This segment can be used to send multiple visit statistic records to the same patient account or single visit records to more than one account. Each site must determine the use for this segment.

Seq
Element Name
Req
Len
Comments
0
Segment ID (PV1)
R
3
“PV1”
1
Set ID – Patient Visit
O
4
 
2
Patient Class
O
1
I – inpatient, O – outpatient, P – pre-admit, E – emergency
3
Assigned Patient Location
O
12
Location^Room^Bed
7
Attending Doctor
R
60
Doctor mnemonic^Doctor name
8
Referring Doctor
O
45
Doctor mnemonic^Doctor name
9
Consulting Doctor
O
60
 
10
Hospital Service
O
10
 
11
Temporary Location
O
10
 
12
Pre-Admit Test Indicator
O
2
 
13
Re-Admission Indicator
O
2
 
14
Admit Source
O
10
 
15
Ambulatory Status
O
2
 
16
VIP Indicator
O
1
Y or N
17
Admitting Doctor
O
60
Doctor mnemonic^Doctor name
18
Patient Type
O
3
IN= Inpatient OU=OutPatient
19
Visit Number
O
4
 
20
Financial Class
O
10
 
21
Charge Price Indicator
O
2
 
22
Courtesy Code
O
2
 
23
Credit Rating
O
2
 
24
Contract Code
O
2
 
25
Contract Effective Date
O
8
 
26
Contract Amount
O
12
 
27
Contract Period
O
3
 
28
Interest Code
O
2
 
29
Transfer to Bad Debt Code
O
1
 
30
Transfer to Bad Debt Date
O
8
 
31
Bad Debt Agency Code
O
10
 
32
Bad Debt Transfer Amount
O
12
 
33
Bad Debt Recovery Amount
O
12
 
34
Delete Account Indicator
O
1
 
35
Delete Account Date
O
8
 
36
Discharge Disposition
O
10
 
37
Discharge To Location
O
2
 
38
Diet Type
O
2
 
39
Servicing Facility
O
10
 
40
Bed Status
O
1
 
41
Account Status
O
3
 
42
Pending Location
O
12
 
43
Prior Temporary Location
O
12
 
44
Admit Date/Time
R
12
YYYYMMDDhhmm[ss]
45
Discharge Date/Time
CR
12
YYYYMMDDhhmm[ss]
46
Current Patient Balance
O
12
 
47
Total Charges
O
12
 
48
Total Adjustments
O
12
 
49
Total Payments
O
12
 
50
Alternate Visit ID
O
16
 
51
VisitIndicator
O
1
 
52
OtherHealthcareProvider
O
250
 
R = Required, CR = Conditionally Required, O = Optional, N = Omeric, AN = Alpha/Omeric, ID = Segment Identification

 

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