The following BCD codes are currently implemented:

4-bit codes

• 8-4-2-1 code
• Aiken
• Glixon
• Gray
• Gray excess code
• O’Brien
• Petherick
• Stibitz
• Tompkins

5-bit codes

• 2 out of 5 code
• Libaw-Craig
• POSTNET
• PLANET

7- bit codes

• Biquinary
• Hamming

10-bit codes

• 1 out of 10 code