I70.42
Atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 18 never code together
I70code
Excludes2
- arteriosclerotic cardiovascular disease (I25.1-)I25.1-
- arteriosclerotic heart disease (I25.1-)I25.1-
- atheroembolism (I75.-)I75.-
- cerebral atherosclerosis (I67.2)I67.2
- coronary atherosclerosis (I25.1-)I25.1-
- mesenteric atherosclerosis (K55.1)K55.1
- precerebral atherosclerosis (I67.2)I67.2
- primary pulmonary atherosclerosis (I27.0)I27.0
I00-I99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- transient cerebral ischemic attacks and related syndromes (G45.-)G45.-
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 22
I70.4code
Use additional code
- code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)I70.92
I70code
Includes
- arteriolosclerosis
- arterial degeneration
- arteriosclerosis
- arteriosclerotic vascular disease
- arteriovascular degeneration
- atheroma
- endarteritis deformans or obliterans
- senile arteritis
- senile endarteritis
- vascular degeneration
I70.42code
Includes
- any condition classifiable to I70.41-I70.41-
- chronic limb-threatening ischemia NOS of autologous vein bypass graft(s) of the extremities
- chronic limb-threatening ischemia of autologous vein bypass graft(s) of the extremities with rest pain
- critical limb ischemia NOS of autologous vein bypass graft(s) of the extremities
- critical limb ischemia of autologous vein bypass graft(s) of the extremities with rest pain
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 7 same parent — I70.4
I70.40 Unsp athscl autologous vein bypass of the extremities category I70.41 Athscl autologous vein bypass of the extrm w intrmt claud category I70.43 Athscl autologous vein bypass of the right leg w ulceration category I70.44 Athscl autologous vein bypass of the left leg w ulceration category I70.45 Athscl autologous vein bypass of extremity w ulceration I70.46 Athscl autologous vein bypass of the extremities w gangrene category I70.49 Oth athscl autologous vein bypass of the extremities category
Subordinate codes 5
I70.421 Athscl autol vein bypass of the extrm w rest pain, right leg I70.422 Athscl autol vein bypass of the extrm w rest pain, left leg I70.423 Athscl autol vein bypass of the extrm w rest pain, bi legs I70.428 Athscl autol vein bypass of the extrm w rest pain, oth extrm I70.429 Athscl autol vein bypass of extrm w rest pain, unsp extrm
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.