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I70.35

Atherosclerosis of unspecified type of bypass graft(s) of other extremity with ulceration

Billable FY2026 2025-10-01 → 2026-09-30 valid age >= 15
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
I70.3code
Excludes1
  • embolism or thrombus of bypass graft(s) of extremities (T82.8-)T82.8-
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 19
I70code
Includes
  • arteriolosclerosis
  • arterial degeneration
  • arteriosclerosis
  • arteriosclerotic vascular disease
  • arteriovascular degeneration
  • atheroma
  • endarteritis deformans or obliterans
  • senile arteritis
  • senile endarteritis
  • vascular degeneration
Use additional code
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)Z77.22
  • history of tobacco dependence (Z87.891)Z87.891
  • occupational exposure to environmental tobacco smoke (Z57.31)Z57.31
  • tobacco dependence (F17.-)F17.-
  • tobacco use (Z72.0)Z72.0
I70.35code
Includes
Use additional code
  • code to identify severity of ulcer (L98.49-)L98.49-
I70.3code
Use additional code
  • code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)I70.92
Index entries leading here 1
  • Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) I70.90
    • extremities (native arteries) I70.209
      • bypass graft I70.309
        • specified NEC I70.308
          • with
            • ulceration (and intermittent claudication and rest pain) I70.35
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 I70.36 Athscl unsp type bypass of the extremities w gangrene category I70.39 Oth athscl unsp type bypass graft(s) of the extremities category
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC106 · HCC161 CMS28HCC263 · HCC383 ESRD21HCC106 · HCC161 ESRD24HCC106 · HCC161 RX08HCC311

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
I70.3
Block
I70-I79
Siblings
7

Present FY2024–FY2027.