Medical code Condition 1 Allergy 2 Arthritis 3 Asthma 4 Cataract 5 Chickenpox 6 Earache 7 Eczema 8 Fracture 9 Hip joint 10 Influenza 11 Knee joint 12 Migraine 13 Mumps 14 Repetitive Strain Injury 15 Back problem 16 Tonsillitis 17 Tummy ache 18 Verruca 19 Viral infection 20 Warts