The NK1 segment contains information about the patient’s other related parties, and any associated parties. If necessary, multiple NK1 segments can be sent to patient accounts using the NK1-1-set ID field. If a person or organization fulfills multiple contact roles, for example, a person is an emergency contact and a next of kin, it is recommended to send a NK1 segment for each contact role (field 7).
NK1 Attributes
The NK1 fields are as follows:
| SEQ | LEN | DT | OPT | RP/# | ELEMENT NAME |
|---|---|---|---|---|---|
| 1 | 4 | SI | R | Set ID – NK1 | |
| 2 | 48 | XPN | O | Y | Name |
| 3 | 60 | CE | O | Relationship | |
| 4 | 106 | XAD | O | Y | Address |
| 5 | 40 | XTN | O | Y | Phone Number |
| 6 | 40 | XTN | O | Y | Business Phone Number |
| 7 | 60 | CE | O | Contact Role | |
| 8 | 8 | DT | O | Start Date | |
| 9 | 8 | DT | O | End Date | |
| 10 | 60 | ST | O | Next of Kin / Associated Parties Job Title | |
| 11 | 20 | JCC | O | Next of Kin / Associated Parties Job Code/Class | |
| 12 | 20 | CX | O | Next of Kin / Associated Parties Employee Number | |
| 13 | 90 | XON | O | Y | Organization Name – NK1 |
| 14 | 80 | CE | O | Marital Status | |
| 15 | 1 | IS | O | Sex | |
| 16 | 26 | TS | O | Date/Time of Birth | |
| 17 | 2 | IS | O | Y | Living Dependency |
| 18 | 2 | IS | O | Y | Ambulatory Status |
| 19 | 80 | CE | O | Y | Citizenship |
| 20 | 60 | CE | O | Primary Language | |
| 21 | 2 | IS | O | Living Arrangement | |
| 22 | 80 | CE | O | Publicity Code | |
| 23 | 1 | ID | O | Protection Indicator | |
| 24 | 2 | IS | O | Student Indicator | |
| 25 | 80 | CE | O | Religion | |
| 26 | 48 | XPN | O | Y | Mother’s Maiden Name |
| 27 | 80 | CE | O | Nationality | |
| 28 | 80 | CE | O | Y | Ethnic Group |
| 29 | 80 | CE | O | Y | Contact Reason |
| 30 | 48 | XPN | O | Y | Contact Person’s Name |
| 31 | 40 | XTN | O | Y | Contact Person’s Telephone Number |
| 32 | 106 | XAD | O | Y | Contact Person’s Address |
| 33 | 32 | CX | O | Y | Next of Kin/Associated Party’s Identifiers |
| 34 | 2 | IS | O | Job Status | |
| 35 | 80 | CE | O | Y | Race |
| 36 | 2 | IS | O | Handicap | |
| 37 | 16 | ST | O | Contact Person Social Security Number |
*Note: For the complete HL7 Standard, please go to the HL7 organization website.
In HL7 pipe and hat format, the NK1 segment (shown in red) for an ADT-A01 message would look like this:
MSH|^~&|ADT1|MCM|LABADT|MCM|198808181126|SECURITY|ADT^A01|MSG00001|P|2.3|
EVN|A01|198808181123||
PID|||PATID1234^5^M11||JONES^WILLIAM^A^III||19610615|M||C|1200 N ELM
STREET^^GREENSBORO^NC^27401‑1020|GL|(919)379‑1212|
(919)271‑3434||S||PATID12345001^2^M10|123456789|987654^NC|
NK1|1|JONES^BARBARA^K|WIFE||||||NK^NEXT OF KIN||||||||||
PV1|1|I|2000^2012^01||||004777^LEBAUER^SIDNEY^J.|||SUR||||ADM|A0|
