I70.408
BillableUnspecified atherosclerosis of autologous vein bypass graft(s) of the extremities, other extremity
HCC Category Mapping
V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000What This Code Means
Fatty buildup in a vein graft placed in an extremity other than the legs, such as an arm.
Coding Tips
- •Use when atherosclerosis affects autologous vein grafts in upper extremities or other non-leg locations
- •Ensure documentation clearly identifies which extremity is affected
Clinical Significance
This code captures other specified manifestations of atherosclerosis in autologous vein bypass grafts not classified as claudication, rest pain, ulceration, or gangrene. These may include conditions such as atheroembolism from the graft, aneurysmal degeneration of the graft, or other documented vascular complications. Accurate coding of these specified manifestations ensures complete clinical picture capture for risk adjustment and care management.
Documentation Requirements
- ✓Documentation of peripheral arterial disease or atherosclerosis affecting the bypass graft
- ✓Identification of graft type as autologous vein (if autologous vein is confirmed, document the vein source; if type is unknown, document it as unspecified)
- ✓Specification of which extremity is affected (upper extremity or other non-lower-extremity site)
- ✓Specific manifestation of atherosclerosis clearly described
- ✓Vascular studies or imaging documenting graft status
- ✓History of bypass graft surgery with date and indication when available
Commonly Confused Codes
I70.3xx (unspecified type bypass graft codes) — Use I70.3xx when the graft type is not documented; use I70.4xx (autologous vein) only when the graft is confirmed as the patient's own veinI70.5xx (nonautologous biological bypass graft codes) — Use when the graft is a biological material from a donor (cadaveric vein, bovine graft), not the patient's own veinI70.6xx (nonbiological bypass graft codes) — Use for synthetic grafts such as polytetrafluoroethylene or Dacron, not for autologous vein graftsI70.2xx (native artery atherosclerosis codes) — Use for atherosclerosis of native arteries, not bypass grafts; verify whether disease is in the graft or native vessel
Code Hierarchy
└I70Atherosclerosis└I70.4Atherosclerosis of autologous vein bypass graft(s) of the extremities└I70.40Unspecified atherosclerosis of autologous vein bypass graft(s) of the extremities└I70.408Unspecified atherosclerosis of autologous vein bypass graft(s) of the extremities, other extremity
└I70.408Unspecified atherosclerosis of autologous vein bypass graft(s) of the extremities, other extremity