Use this table to check which data element (DE) 1/11 (3-digit additional procedure codes) can be used with DE 1/10 (4-digit procedure codes) .
Source: HMRC

Use appendix 6 to find codes for data element 3/39 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC

Use appendix 3 to find codes for data element 2/1 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC

Use appendix 15 to find codes for data element 5/21 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC

Use appendix 14 to find codes for data element 5/12 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC

Find information about how to complete and submit customs declarations using the Customs Declaration Service (CDS)
Source: HMRC

Use appendix 18 to find codes for data element 6/9 of the Customs Declaration Service (CDS) when importing to the UK.
Source: HMRC

Use appendix 17 to find codes for data element 5/27 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC

Use appendix 7 to find codes for data element 4/1 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC

Use appendix 11 to find codes for data element 4/10 of the Customs Declaration Service (CDS) when importing into the UK.
Source: HMRC