| Segment | Ebene | Beschreibung | Opt/Mand. |
|---|
| UNH | 0 | A service segment starting and uniquely identifying a message. The message type code for the Classification information set message is CLASET. Note: Classification information set messages conforming to this document must contain the following data in segment UNH, composite S009: Data element 0065 CLASET D A UN | Mandatory |
| BGM | 0 | A segment specifying the functional use (e.g. request) of the Classification information set message. | Mandatory |
| DTM | 0 | A segment identifying the message preparation date/time. | Optional |
| SG1 | 0 | SG1 | Optional |
| RFF | 1 | A segment to specify the reference number. | Mandatory |
| DTM | 1 | A segment to specify the date and time of the reference. | Optional |
| SG2 | 0 | SG2 | Optional |
| PNA | 1 | A segment identifying a party. | Mandatory |
| ADR | 1 | A segment identifying the address of the party. | Optional |
| SG3 | 1 | SG3 | Optional |
| CTA | 2 | A segment identifying a person or department for the party identified in the PNA segment and to whom communication should be directed. | Mandatory |
| COM | 2 | A segment containing communication information for the contact identified in the CTA segment. | Optional |
| SG4 | 0 | SG4 | Optional |
| VLI | 1 | A segment identifying a classification or a table of links. | Mandatory |
| DTM | 1 | A segment defining the interval of validity and other relevant dates for the classification, or the table of links. | Optional |
| EQN | 1 | A segment defining the number of objects (e.g. levels or items) in the classification or the table of links. | Optional |
| SG5 | 1 | SG5 | Optional |
| PNA | 2 | A segment identifying an agency and its role. | Mandatory |
| LAN | 2 | A segment identifying the language of the agency. | Optional |
| SG6 | 2 | SG6 | Optional |
| CTA | 3 | A segment identifying a person or a department for the agency and to whom communication should be directed. | Mandatory |
| ADR | 3 | A segment defining address details for the contact person or department. | Optional |
| COM | 3 | A segment containing communication details for the person or the department identified in the CTA segment. | Optional |
| SG7 | 1 | SG7 | Optional |
| STS | 2 | A segment identifying a status event for the classification or the table of links. | Mandatory |
| DTM | 2 | A segment defining relevant dates for the status event. | Optional |
| SG8 | 1 | SG8 | Optional |
| ATT | 2 | A segment identifying a property function and a property type. | Mandatory |
| DTM | 2 | A segment defining an interval of validity and other relevant dates for the property. | Optional |
| ELM | 2 | A segment identifying the data type and format of the property value. | Optional |
| SG9 | 2 | SG9 | Optional |
| CAV | 3 | A segment defining a characteristic of a textual property value. | Mandatory |
| FTX | 3 | A segment defining a textual property value and the language of the text. | Optional |
| SG10 | 2 | SG10 | Optional |
| STS | 3 | A segment identifying a status event for the property. | Mandatory |
| DTM | 3 | A segment defining relevant dates for the status event. | Optional |
| SG11 | 1 | SG11 | Optional |
| SCD | 2 | A segment identifying the type of structure component (e.g. level, item or link) and the component itself. | Mandatory |
| DTM | 2 | A segment defining the interval of validity and other relevant dates for the structure component. | Optional |
| EQN | 2 | A segment defining the number of structure components in the identified level of hierarchy structure, such as the number of items in the level. | Optional |
| SG12 | 2 | SG12 | Optional |
| STS | 3 | A segment identifying a status event for the structure component. | Mandatory |
| DTM | 3 | A segment defining relevant dates for the status event. | Optional |
| SG13 | 2 | SG13 | Optional |
| ATT | 3 | A segment identifying a property function and a property type. | Mandatory |
| DTM | 3 | A segment defining an interval of validity and other relevant dates for the property. | Optional |
| ELM | 3 | A segment identifying the data type and format of the property value. | Optional |
| SG14 | 3 | SG14 | Optional |
| CAV | 4 | A segment defining a characteristic of a textual property value. | Mandatory |
| FTX | 4 | A segment defining a textual property value and the language of the text. | Optional |
| SG15 | 3 | SG15 | Optional |
| STS | 4 | A segment defining a status event for the property. | Mandatory |
| DTM | 4 | A segment defining relevant dates for the status event. | Optional |
| SG16 | 2 | SG16 | Optional |
| IDE | 3 | A segment identifying the related structure component such as a level or an item in a link. | Mandatory |
| DTM | 3 | A segment defining an interval of validity and other relevant dates for the related structure component. | Optional |
| EQN | 3 | A segment defining the number of structure components in the identified level of hierarchy structure, such as the number of items in the level. | Optional |
| SG17 | 3 | SG17 | Optional |
| STS | 4 | A segment identifying a status event for the related structure component. | Mandatory |
| DTM | 4 | A segment defining relevant dates for the status event. | Optional |
| SG18 | 3 | SG18 | Optional |
| ATT | 4 | A segment identifying the property function and the property type. | Mandatory |
| DTM | 4 | A segment defining an interval of validity and other relevant dates of the property. | Optional |
| ELM | 4 | A segment defining the data type and format of the property. | Optional |
| SG19 | 4 | SG19 | Optional |
| CAV | 5 | A segment identifying a characteristic of the textual property value. | Mandatory |
| FTX | 5 | A segment defining a textual property value and the language of the text. | Optional |
| SG20 | 4 | SG20 | Optional |
| STS | 5 | A segment identifying a status event for the property. | Mandatory |
| DTM | 5 | A segment defining relevant dates for the status event. | Optional |
| UNT | 0 | A service segment ending a message, giving the total number of segments in the message (including the UNH & UNT) and the control reference number of the message. | Mandatory |
