W2 Box 14 - HSA

Is there a way to add lookup codes to the ORA_HRX_US_W2_BOX_14_USER_DFND lookup type? We're needing to add box 14W to the W2, which is not in the ORA_HRX_US_W2_BOX_14_USER_DFND lookup type (Manage Common Lookups). I presume since the plus sign is greyed out that we cannot add any additional codes.

If that's the case, would the next action be to add them in the Enterprise HCM Information task?:

Edit: apologies, was given the wrong box. Should be box 12W which is W2 Health Saving Account.