code: def get_disease_mappings(self, att_ind_start):
          
          all_disease_ids = self.get_all_unique_diseases()
          disease_enum = enumerate(all_disease_ids, start=att_ind_start)
          disease_mappings = {}
          for num, dis in disease_enum:
              disease_mappings[dis] = num
          return disease_mappings
docs: Get a dictionary of enumerations for diseases.
  
          :param int att_ind_start: Starting index for enumeration.
          :return: Dictionary of disease, number pairs.