| 90 | Optical instruments and apparatus, photographic, cinematographic, measuring, checking, precision, medical or surgical; parts and accessories |
| 9021 | Orthopedic appliances, including crutches, surgical belts and trusses; splints and other fracture appliances; artificial body parts; hearing aids and other appliances which are worn or carried, or implanted in the t |
| 902190 | Other orthopedic appliances, including crutches, surgical belts and trusses; splints and other fracture appliances |
| 9021901000 | Parts and accessories of hearing aids |