| 20001000 | Auricular use | Administration of a medicinal product to the ear. | X |
| 20002500 | Buccal use | Administration of a medicinal product to the buccal cavity (pouch located between the cheek and the gum) to obtain a systemic effect | X |
| 20003000 | Cutaneous use | Administration of a medicinal product to the skin and or cutaneous wounds and or nails and or hair in order to obtain a local effect. | X |
| 20004000 | Dental use | Administration of a medicinal product to and or in the teeth or, on and or around the nerves supplying the teeth. | X |
| 20006000 | Endocervical use | Administration of a medicinal product to the cervix uteri. | X |
| 20007000 | Endosinusial use | Administration of a medicinal product to the sinuses to obtain a local effect. | X |
| 20008000 | Endotracheopulmonary use | Administration of a medicinal product to the trachea and or bronchiae by instillation (preparations for inhalation are excluded; see inhalation use). | X |
| 20009001 | Epidural use | Injection of a medicinal product into the epidural space. | X |
| 20013500 | Gastric use | Administration of a medicinal product to the stomach by means of an appropriate device | X |
| 20013000 | Gastroenteral use | Administration of a medicinal product to the stomach or duodenum gastroenteral tract by means of an appropriate device. For use only when gastric use and intestinal use do not apply. | X |
| 20014000 | Gingival use | Administration of a medicinal product to the gingivae. | X |
| 20015000 | Haemodialysis | Clearance of the blood by means of a semipermeable membrane. Previous English term 'Hemodialysis' corrected 04-07-11. | X |
| 20015500 | Implantation | Implantation | X |
| 20019500 | Infiltration | Method of administration, usually by injection, whereby a fluid passes into a target tissue (e.g. anaesthetic infiltration) | X |
| 20020000 | Inhalation use | Administration of a medicinal product to the respiratory system by inhalation to obtain a systemic or a local effect in the lower respiratory tract. Nasal use and endotracheopulmonary use are excluded | X |
| 20021000 | Intestinal use | Administration of a medicinal product to the intestine (duodenum, jejunum, ileum and colon) by means of an appropriate device. Gastroenteral use is excluded | X |
| 20023000 | Intraarterial use | Injection of a medicinal product into an artery. | X |
| 20025000 | Intrabursal use | Injection of a medicinal product into bursae and tendons. | X |
| 20026000 | Intracardiac use | Injection of a medicinal product into the cardiac muscle and or cardiac cavity. | X |
| 20027000 | Intracavernous use | Injection of a medicinal product into the corpus cavernosum. | X |
| 20027010 | Intracerebral use | Administration of a medicinal product directly to the brain tissue. | X |
| 20029000 | Intracoronary use | Injection of a medicinal product into the coronary artery. | X |
| 20030000 | Intradermal use | Injection of a medicinal product into the dermis. | X |
| 20035000 | Intramuscular use | Injection of a medicinal product into muscular tissue. | X |
| 20036000 | Intraocular use | Administration of a medicinal product into the eye. The term intraocular is only for use when a more specific term (for ex. intravitreal...) does not apply. Ocular use and subconjunctival use are excluded. | X |
| 20038000 | Intraperitoneal use | Injection of a medicinal product into the peritoneal cavity. | X |
| 20039000 | Intrapleural use | Injection of a medicinal product into the pleural cavity. | X |
| 20042000 | Intrathecal use | Injection of a medicinal product through the dura to the subarachnoid cavity. | X |
| 20043000 | Intratumoral use | (draft) Injection of a medicinal product into a tumor. | X |
| 20044000 | Intrauterine use | Administration of a medicinal product to the cavity of the uterus. | X |
| 20045000 | Intravenous use | Injection of a medicinal product into a vein. | X |
| 20046000 | Intravesical use | Administration of a medicinal product to the urinary bladder. | X |
| 20047000 | Intravitreal use | Administration of a medicinal product into the rear chamber of the eye. | X |
| 20051000 | Ocular use | Administration of a medicinal product upon the eyeball and or conjunctiva. | X |
| 20053000 | Oral use | Taking a medicinal product by means of swallowing | X |
| 20054000 | Oromucosal use | Administration of a medicinal product to the oral cavity to obtain either a systemic or a local effect. The term oromucosal is only for use when a more specific term (e.g. buccal, gingival, sublingual...) does not apply. Oral use is excluded. | X |
| 20058000 | Perineural use | Injection of a medicinal product into the direct surroundings of one or more nerves. | X |
| 20059000 | Periodontal use | Administration to the pouch between the tooth and the gingiva. | X |
| 20061000 | Rectal use | Administration of a medicinal product to the rectum in order to obtain a local or systemic effect. | X |
| 20065000 | Subconjunctival use | Injection of a medicinal product underneath the conjunctiva | X |
| 20066000 | Subcutaneous use | Injection of a medicinal product directly underneath the skin, i.e. subdermally | X |
| 20067000 | Sublingual use | Administration of a medicinal product under the tongue to obtain a systemic effect. | X |
| 20071000 | Urethral use | Administration of a medicinal product to the urethra. | X |
| 20072000 | Vaginal use | Administration of a medicinal product to the vagina. | X |