Anything on your K-1 schedule in box 20 would be entered on the box 20 K-1 entry screen in TurboTax. The letters AH you mention refers to Other Information. If there is an amount entered for that on your K-1 schedule, you can enter the AH code and the amount in box 20 in TurboTax and on the next sceen you will see some pre-printed options that may apply, or you can enter your own description and amount. You would have to read the statements and notes attached to your K-1 schedule to determine what amounts you should enter for the codes in TurboTax. If you are unsure, you would have to contact the issuer of the schedule K-1 and ask for clarification.
Anything on your K-1 schedule in box 20 would be entered on the box 20 K-1 entry screen in TurboTax. The letters AH you mention refers to Other Information. If there is an amount entered for that on your K-1 schedule, you can enter the AH code and the amount in box 20 in TurboTax and on the next sceen you will see some pre-printed options that may apply, or you can enter your own description and amount. You would have to read the statements and notes attached to your K-1 schedule to determine what amounts you should enter for the codes in TurboTax. If you are unsure, you would have to contact the issuer of the schedule K-1 and ask for clarification.