| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Primary malignant neoplasm of vestibule of mouth | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Secondary malignant neoplasm of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Mixed cell type lymphosarcoma of lymph nodes of head, face, and neck | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Nodular lymphoma of lymph nodes of head, face, and neck | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Muscle spasms of head AND/OR neck | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Degenerative disorder of head | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Infective disorder of head | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Inflammatory disorder of head | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of anterior two-thirds of tongue | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of base of tongue | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of lingual tonsil | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of major salivary gland | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of parotid gland | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of submandibular gland | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of sublingual gland | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of gum | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of floor of mouth | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of hard palate | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of soft palate | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of uvula | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of palate | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of retromolar area | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of oropharynx | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumor of vallecula | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of soft tissue of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of minor salivary gland | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant tumour of oral cavity | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Streptococcal sore throat with scarlatina | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant neoplasm of nasal cavities, middle ear and accessory sinuses | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Carcinoma in situ of scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of major salivary gland (disorder) | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of tongue | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of minor salivary gland | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behaviour of gums | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of floor of mouth | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of palate | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of oropharynx | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Atlanto-occipital ankylosis | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| skador på skalp orsakade av förlossningstrauma | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Fracture of skull and facial bones | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Open division, temporomandibular ligament | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Injury of muscle and tendon of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Frostbite with tissue necrosis of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of oral cavity | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Cerebral compression due to injury | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Bacterial oral infection | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| H/O: head injury | Associated finding | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Disorder of teeth AND/OR supporting structures (disorder) | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Pressure injury of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Shallow vestibular depth after teeth loss | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Inadequate vestibular depth after teeth loss | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Palatal paralysis | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Orofacial sarcoid | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Alveolar ridge abnormality | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Psoriasis of scalp (disorder) | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Lichen planus of scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Erosive pustular dermatosis of the scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Disorder of scalp | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Congenital malformation of salivary glands and ducts | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Hematoma of oral cavity | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Penetrating injury of oral cavity | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Oral cavity, dental and salivary gland disorder | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Metal foreign body in head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Fishing hook in head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Glass in head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Animal bite of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Oral cavity, dental and salivary gland injury | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Foreign body in skin of head (disorder) | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Cyst of scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Bite wound of mouth | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Occipital lymphadenopathy | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Inferior auricular lymphadenopathy | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Submandibular lymphadenopathy | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Acute lymphangitis of head | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Foreign body in mouth | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Retropharyngeal abscess | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Acne varioliformis | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Seborrhea capitis | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Disorder of oral soft tissues (disorder) | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Folliculitis keloidalis nuchae | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Ulerythema of cheeks | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Cradle cap | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Traumatic alopecia | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Abscess of head, except face | Is a | True | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Parapharyngeal abscess | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Lipoma of skin and subcutaneous tissue of scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of skin of scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Reticulosarcoma of lymph nodes of head, face, and neck | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Vesicular skin eruptions of the temporal region | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Necrosis of hard palate | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Masticatory myositis | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| malignt melanom i tinning | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant melanoma of scalp (disorder) | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Malignant neoplasm of scalp | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Soft tissue impingement | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Frontal alopecia of women | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Intracranial nontraumatic hemorrhage of fetus and newborn | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Splinter of head, without major open wound or mention of infection | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Splinter of head, without major open wound, infected | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  | 
| Skin and mucous membrane disorder of mouth, lips and tongue | Is a | False | Disorder of head (disorder) | Inferred relationship | Some |  |