I70.39
Other atherosclerosis of unspecified type of bypass graft(s) of the extremities
Not billable — category only FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 7 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 19 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.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 17
I70code
Includes
- arteriolosclerosis
- arterial degeneration
- arteriosclerosis
- arteriosclerotic vascular disease
- arteriovascular degeneration
- atheroma
- endarteritis deformans or obliterans
- senile arteritis
- senile endarteritis
- vascular degeneration
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 7 same parent — I70.3
I70.30 Unsp athscl unsp type bypass graft(s) of the extremities category I70.31 Athscl unsp type bypass of the extremities w intrmt claud category I70.32 Athscl unsp type bypass of the extremities w rest pain category I70.33 Athscl unsp type bypass of the right leg w ulceration category I70.34 Athscl unsp type bypass of the left leg w ulceration category I70.35 Athscl unsp type bypass graft(s) of extremity w ulceration I70.36 Athscl unsp type bypass of the extremities w gangrene category
Subordinate codes 5
I70.391 Oth athscl unsp type bypass of the extremities, right leg I70.392 Oth athscl unsp type bypass of the extremities, left leg I70.393 Oth athscl unsp type bypass of the extrm, bilateral legs I70.398 Oth athscl unsp type bypass of the extrm, oth extremity I70.399 Oth athscl unsp type bypass of the extrm, unsp extremity
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.