Below are details of the amendments that were published on 11 January 2005 (see the update index for all updates).
| Section | Title and details of the update |
| EP6519 | Underpayments: general points: `Coding in' an underpayment: Updated to include guidance about 50% K code limit |
| EP6526 | Underpayments: How to limit amount of underpayment included in code: Updated guidance |