The codes are defined as three characters. The first letter will represent the frequency. The second character will represent whether the item is to be billed at the beginning or end of the billing cycle. The third character will represent if the item is fixed of variable.
| First Character – frequency |
| 1 |
1 time billable item |
| M |
The item is billed on a Monthly basis |
| Q |
The item is billed on a Quarterly basis |
| S |
The item is billed on a Semi – annual basis |
| A |
The item is billed on an Annual basis |
| Second Character – billable timing |
| B |
The item is billed at the Beginning of the service period |
| E |
The item is billed at the End of the service period |
| Third Character – Fixed vs. Variable |
| F |
The item is a Fixed priced item |
| V |
The item is a Variable cost item |
