| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Percutaneous venous device procedure | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous arteriovenous fistula device procedure | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous balloon dilation of esophagus | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous needle biopsy lung | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous needle biopsy of liver | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous needle biopsy of spleen | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous needle lymphatic biopsy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Intrauterine exchange transfusion | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic percutaneous examination of placenta | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous transluminal thrombolysis of femoral graft using streptokinase | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Primary percutaneous intradiscal lumbar discectomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Open insertion of iliac artery stent | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous transluminal insertion of iliac artery stent | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Temporary percutaneous endoscopic gastrostomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Permanent percutaneous endoscopic gastrostomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous transluminal angioplasty of vascular graft | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified diagnostic percutaneous operation on liver | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic percutaneous operation on liver NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified therapeutic percutaneous operation on gallbladder | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Therapeutic percutaneous operation on gallbladder NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified diagnostic percutaneous operation on gallbladder | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic percutaneous operation on gallbladder NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous dilation of anastomosis of bile duct NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified therapeutic percutaneous attention to connection of bile duct | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Therapeutic percutaneous attention to connection of bile duct NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified percutaneous examination of bile duct | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous examination of bile duct NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous drainage of lesion of pancreas and insertion of cystogastrostomy tube NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous drainage of lesion of pancreas NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Other specified therapeutic percutaneous operation on pancreas | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Therapeutic percutaneous operation on pancreas NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified diagnostic percutaneous operation on pancreas | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Diagnostic percutaneous operation on pancreas NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified transluminal balloon angioplasty of coronary artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Transluminal balloon angioplasty of coronary artery NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous transluminal injection of therapeutic substance into coronary artery NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous transluminal angioplasty of celiac artery NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous transluminal angioplasty of superior mesenteric artery NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified percutaneous renal stone surgery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous renal stone surgery NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified percutaneous puncture of kidney | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous puncture of kidney NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified operation along nephrostomy track | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Operation along nephrostomy tube track NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other nephroscopic fragmentation of ureteric calculus | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified therapeutic nephroscopic operation on ureter | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Therapeutic nephroscopic operation on ureter NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified therapeutic percutaneous operation on fetus | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Therapeutic percutaneous operation on fetus NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other specified diagnostic percutaneous examination of fetus | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Diagnostic percutaneous examination of fetus NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Other specified puncture of pleura | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Puncture of pleura NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Radiofrequency controlled thermal denervation of spinal facet joint of vertebra NEC | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Therapeutic aspiration procedure NOS | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Other therapeutic aspiration | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous urinary vesicostomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Tenotomy of adductor of hip, subcutaneous, open, with obturator neurectomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous core needle biopsy of liver | Access | True | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous core needle biopsy of lung | Access | True | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous core needle biopsy of mediastinum | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Tenotomy of adductor of hip, subcutaneous, open | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous cystography | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous aspiration of seminal vesicle | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous aspiration | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Excisional biopsy of brain, percutaneous, needle | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous fine needle aspiration of mastectomy scar | Access | True | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous aspiration of liver | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous placement of gastrostomy tube | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous abdominal approach | Is a | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous fine needle biopsy of lung | Access | True | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous transluminal cardiac valvotomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous cardiac valvuloplasty | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous coil embolization of cerebral artery aneurysm | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous aspiration of spinal cord syrinx | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Aspiration of trachea, percutaneous | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous fine needle biopsy of liver | Access | True | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous transluminal coronary angioplasty by rotoablation | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous rotational coronary endarterectomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous transluminal coronary angioplasty with rotoablation, single vessel | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous insertion of inferior vena cava filter | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous dilational tracheostomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Change of percutaneous biliary drainage catheter | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier |  | 
| Percutaneous balloon angioplasty of hepatic artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Infusion of intra-arterial thrombolytic agent with percutaneous transluminal coronary angioplasty, single vessel | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous transluminal coronary angioplasty with rotoablation, single vessel | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 3 | 
| Removal of coronary artery obstruction, percutaneous transluminal, multiple vessels | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous angioplasty of brachial artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Infusion of intra-arterial thrombolytic agent with percutaneous transluminal coronary angioplasty | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Other specified transluminal balloon angioplasty of coronary artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous transluminal coronary angioplasty, multiple vessels | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Removal of coronary artery obstruction by percutaneous transluminal balloon with thrombolytic agent | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous transluminal angioplasty of visceral artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous transluminal coronary angioplasty by rotoablation | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 3 | 
| Percutaneous transluminal femoropopliteal artery balloon angioplasty | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Infusion of intra-arterial thrombolytic agent with percutaneous transluminal coronary angioplasty, multiple vessels | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 7 | 
| Percutaneous high speed rotational coronary atherectomy | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous transluminal angioplasty of peripheral artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 2 | 
| Percutaneous balloon angioplasty of celiac artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 1 | 
| Percutaneous balloon angioplasty of celiac artery | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 5 | 
| Percutaneous transluminal renal artery balloon angioplasty | Access | False | Percutaneous approach - access | Inferred relationship | Existential restriction modifier | 4 |