| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Replacement of contact lens | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 1 | 
| Replacement of cerebral ventricular tube | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Insertion of catheter in anterior chamber of eye for permanent drainage in glaucoma | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescription, fitting and dispensing of contact lens | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 1 | 
| Rebase of upper partial denture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing, fitting and revision of contact lens | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Physical medicine initial examination for prosthetic program | Direct device | True | Appliance | Inferred relationship | Existential restriction modifier | 1 | 
| Insertion of catheter in spinal canal space, epidural, subarachnoid or subdural, for infusion of therapeutic or palliative substances | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Tissue conditioning of gingiva of maxilla using denture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Endoscopy and catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization, left heart, by left ventricular puncture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cystourethroscopy with ureteral catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Reline of complete lower denture at chairside | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting and dispensing of spectacles | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of renal vein | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Selective introduction of catheter in coronary artery | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Transglottic catheterization of trachea | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prosthetic evaluation for artificial limb fitting | Direct device | True | Appliance | Inferred relationship | Existential restriction modifier | 1 | 
| Catheterization of urinary bladder (procedure) | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization for bronchography | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Rebase of lower partial denture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of both left and right heart | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Laryngeal catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Reline of complete lower denture at laboratory | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing contact lens for aphakia, unilateral | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Fitting of prosthetic upper limb device | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of prosthesis or prosthetic device of upper arm | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing, fitting and revision of corneoscleral contact lens | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Introduction of catheter into artery of extremity | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization, right heart and transseptal left | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of right heart | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of prosthesis or prosthetic device of lower arm | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Tissue conditioning of gingiva of mandible using denture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of umbilical vein | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Rebase of complete lower denture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of hearing aid | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of urinary bladder catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization, right heart and left ventricular puncture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of bronchus | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of prosthesis or prosthetic device of leg below knee | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Dilation of nasolacrimal duct with insertion of tube or stent | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of ventricular catheter with synchronous replacement | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Modification of contact lens | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Prescribing contact lens for aphakia, bilateral | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 1 | 
| Cardiac catheterization, left heart, retrograde, percutaneous | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of ureterostomy tube and ureteral catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cystostomy with insertion of ureteral catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Transtympanic eustachian tube catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of ureter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Irrigation of indwelling urinary catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of prosthesis of leg | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of urethral catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Introduction of catheter, retrograde, brachial artery | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Transnasal eustachian tube inflation with catheterization | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of bladder by indwelling suprapubic catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization with bronchial brush biopsy | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Insertion of cannula for hemodialysis, vein to vein | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Insertion of catheter into spinal canal for infusion of therapeutic substance | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing corneoscleral contact lens | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Prescribing, fitting and supply of ocular prosthesis | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 4 | 
| Physical medicine evaluation and review for prosthetic program | Direct device | True | Appliance | Inferred relationship | Existential restriction modifier | 1 | 
| Fitting of prosthesis or prosthetic device of shoulder | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of artificial limb | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Reline of lower partial denture at chairside | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of bronchus with lavage | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Complicated catheterization of bladder | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Pulmonary catheterization with Swan-Ganz catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of ureteral catheter | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Add clasp to existing partial denture | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Take-down of cerebral ventricular shunt | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing contact lens for aphakia | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Cardiac catheterization, left heart, transseptal | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of left heart | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Replacement of percutaneous drainage catheter with contrast monitoring | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of inferior vena cava | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Facial measurement and fitting of spectacles, single focus | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Venous catheterization for renal dialysis | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of prosthesis | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Insertion of catheter for central venous pressure monitoring | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Supply of spectacles | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier | 3 | 
| Closure of cystostomy | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of eustachian tube | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing spectacles for aphakia | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Cardiac catheterization, right heart and retrograde left | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of catheter from middle ear | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Reline of upper partial denture at laboratory | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Introduction of catheter into vertebral artery | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Insertion of catheter into common bile duct | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Removal of cystostomy tube | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Introduction of catheter into aorta, initial placement | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Reline of complete upper denture at laboratory | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of spectacles, bifocal | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prosthetic readjustment | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Change of cystostomy tube | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Fitting of prosthesis above knee | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Prescribing, fitting and supervision of ocular prosthesis | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Selective introduction of catheter into aorta, initial placement | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Insertion of catheter into spinal canal for infusion of palliative substances | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  | 
| Catheterization of nasolacrimal duct | Direct device | False | Appliance | Inferred relationship | Existential restriction modifier |  |