Types of Codes in Accounting:
- Sequential: Simple numerical order (101, 102...).
- Block: Ranges assigned to categories (e.g., 1000-1999 for Assets).
- Mnemonic: Memory aids (e.g., RNO for Revenue North Office).
- Hierarchical/Group: Codes indicate relationships (e.g., 1000 Assets, 1100 Current Assets, 1110 Cash).