I70.603
BillableUnspecified atherosclerosis of nonbiological bypass graft(s) of the extremities, bilateral legs
HCC Category Mapping
V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000What This Code Means
Hardening of arteries in surgically placed synthetic or other nonbiological bypass grafts affecting both legs.
Coding Tips
- •This code is specifically for bilateral leg involvement; document that both legs are affected
- •Do not use this code if only one leg is involved
Clinical Significance
This code captures atherosclerosis affecting nonbiological (synthetic) bypass graft(s) of the extremities in the bilateral lower extremities without further specification of severity or manifestation. While this code captures the presence of atherosclerotic disease in bypass grafts, it lacks the clinical specificity of codes indicating claudication, rest pain, ulceration, or gangrene. Providers should be encouraged to document the specific clinical manifestation to support more precise coding and appropriate risk stratification.
Documentation Requirements
- ✓Confirmed diagnosis of atherosclerosis affecting nonbiological (synthetic) bypass graft(s)
- ✓Type of bypass graft material documented (synthetic/nonbiological vs. other type such as composite or mixed-material graft)
- ✓Laterality clearly documented (bilateral lower extremities)
- ✓History of bypass graft surgery with approximate date or timeframe
- ✓Current status and monitoring plan for the bypass graft
- ✓Clinical manifestation should be documented to support more specific coding when possible
- ✓Vascular assessment findings (pulses, ankle-brachial index, imaging results)
Commonly Confused Codes
I70.501-I70.509 — Unspecified atherosclerosis of nonautologous biological bypass graft; different graft materialI70.401-I70.409 — Unspecified atherosclerosis of autologous vein bypass graft; for autologous vein graftsI70.301-I70.309 — Unspecified atherosclerosis of unspecified bypass graft; only when graft type is unknownI70.201-I70.209 — Unspecified atherosclerosis of native arteries; for native vessel disease without bypass graftsI70.701-I70.709 — Unspecified atherosclerosis of other type of bypass graft; for composite or non-standard grafts
Code Hierarchy
└I70Atherosclerosis└I70.6Atherosclerosis of nonbiological bypass graft(s) of the extremities└I70.60Unspecified atherosclerosis of nonbiological bypass graft(s) of the extremities└I70.603Unspecified atherosclerosis of nonbiological bypass graft(s) of the extremities, bilateral legs
└I70.603Unspecified atherosclerosis of nonbiological bypass graft(s) of the extremities, bilateral legs