| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Transtympanic electrocochleography | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Operation on nasal turbinate | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Cauterisation of internal nose | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Biopsy of lesion of gingiva | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Gingivoplasty | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Cauterization of lesion of floor of mouth | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Nasal endoscopy with nasal polypectomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Accessory sinus destructive procedure (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Larynx excision | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Occlusion of nostril | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Excision of lesion of internal nose | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Biopsy of lesion of internal nose | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Biopsy of lesion of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Laryngeal mask airway insertion | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Obturator airway insertion | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Airway clearance by finger sweep | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| avlägsnande av bettskydd | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Periapical curettage of tooth root | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Surgical repair of perforation of tooth root (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Debridement of periodontium | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Pericision of periodontal ligament | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Gingivectomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Modified Widman flap | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Replacement of periodontal flap (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Repositioned periodontal flap | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Grafting of periodontal bone defect (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Mucogingival graft | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| insättning av tandskydd | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Orthognathic assessment and planning | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Operation on accessory sinus | Is a | True | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Fistulization of nasal sinus | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Wax-up of trial denture (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Curettage of tooth socket | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Operation on oral cavity | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Distal wedge periodontal procedure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Fine needle biopsy of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Intentional replantation with splinting | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Open reduction of closed depressed frontal sinus fracture | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Drainage of abscess of nose by internal approach | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Open reduction of open depressed frontal sinus fracture | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Control of epistaxis by excision of nasal mucosa with grafting | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Manipulation of accessory sinus | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Operation on pharynx | Is a | True | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Pulpectomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Laryngoscopy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Destruction of intranasal lesion | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Destructive procedure on larynx (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Functional endoscopic sinus surgery, total | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Crown lengthening, hard and soft tissue | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Alveolectomy, including curettage of osteitis | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Operation on larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Submucous excision of cartilage of nasal septum | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Excision of lesion of epiglottis | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Cannulation of nasal sinus by puncture | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dentoalveolar bone replacement graft, multiple sites, including flap entry and closure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Gingival flap procedure, including root planing, per quadrant | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Functional endoscopic sinus surgery, limited | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Incision and drainage of Ludwig's angina | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Marsupialization of cyst of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dentoalveolar bone replacement graft, single site, including flap entry and closure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Electronystagmogram | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Incision of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dilation of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Intubation of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dentoalveolar bone osseous surgery, including flap entry and closure, per quadrant | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Repair of larynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Weir operation for correction of nostrils | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dental surgical procedure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Subgingival curettage | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Radiography of nasal sinuses | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dental debridement | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Tympanometry testing | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Laryngeal intubation for inhalation | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| kontroll av näsblödning | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Periodontium curettage | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Non-surgical oral biopsy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Nasal polypectomy using auto-debrider | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Radical frontal sinus antrostomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Maxillectomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Adenoid incision | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Adenoid repair | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Tonsil repair | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Adenoid destructive procedure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Tonsil destructive procedure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Indirect laryngoscopy with removal of lesion | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Direct laryngoscopy with surgical procedure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Ventricular shunt to nasopharynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Curettage of adenoids | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Excision of tonsil tag (procedure) | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Excision of uvula | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Cryosurgery for destruction of lesion of uvula | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Chemical cauterization for destruction of lesion of uvula | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Suture of laceration of pharynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Suprahyoid lymphadenectomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Incision of tonsil | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Repair of uvula | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Repair of nasopharyngeal fistula | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Dilation of nasopharynx | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Operation on nose | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Nasal endoscopy with total ethmoidectomy | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  | 
| Nose closure | Is a | False | Operation on upper respiratory tract | Inferred relationship | Some |  |