| Subject | English | Chinese |
| IT | Chinese character control function code | 汉字控制功能码 |
| el. | code division multiple access interworking function | 码分多址网间互通功能 |
| space | extended function code | 扩充功能操作码 |
| el. | extended function code | 扩展功能码 |
| commun., railw. | Function Code | 功能代码 |
| tech. | function code | 操作码 |
| busin. | function code | 机能译码 |
| space | function code | 功能码 |
| tech. | function code | 机器功能码 |
| tech. | function code table | 操作码表 |
| el. | handler function code | 处理机功能［操作］码 |
| telecom. | Hanzi control function code | 汉字控制功能码 |
| el. | integrated code service function | 综合码服务功能 |
| el. | memory function code | 存储功能码 |
| el. | user function code | 用户功能码 |