I70.419
BillableAtherosclerosis of autologous vein bypass graft(s) of the extremities with intermittent claudication, unspecified extremity
HCC Category Mapping
V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000What This Code Means
Fatty buildup in a vein graft causing activity-related pain, but the specific extremity location is not documented.
Coding Tips
- •Use only when intermittent claudication is documented but extremity location is unclear
- •Attempt to clarify the affected extremity through provider query when possible
Clinical Significance
This code identifies atherosclerosis in autologous vein bypass grafts with intermittent claudication, where exertional leg pain occurs due to insufficient blood flow during activity. Claudication in bypass grafts indicates developing graft stenosis or disease progression proximal or distal to the graft. While less acute than rest pain or ulceration, this condition impacts functional status and predicts future vascular events, making it relevant for risk adjustment.
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)
- ✓Claudication symptoms described (pain with walking, relieved by rest)
- ✓Walking distance at onset of symptoms when available
- ✓Ankle-brachial index or vascular imaging results supporting the diagnosis
- ✓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└I70.41Atherosclerosis of autologous vein bypass graft(s) of the extremities with intermittent claudication└I70.419Atherosclerosis of autologous vein bypass graft(s) of the extremities with intermittent claudication, unspecified extremity
└I70.419Atherosclerosis of autologous vein bypass graft(s) of the extremities with intermittent claudication, unspecified extremity