ICDcodes.org
FY2027

I70.341Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of thigh

BillableUnspecifiedCC

Is I70.341 billable?

Yes, but I70.341 is an unspecified code. I70.341 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, I70.341 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting I70.341 — the more specific alternatives are listed below.

I70.341 at a glance

CodeI70.341
DescriptionAtherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of thigh
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does I70.341 group to?

I70.341 sits in MDC 05 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 299Peripheral Vascular Disorders with MCCmedical
  • 300Peripheral Vascular Disorders with CCmedical
  • 301Peripheral Vascular Disorders without CC/MCCmedical

As a secondary diagnosis, I70.341 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.

How is I70.341 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to I70.341. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Arteriosclerosis, arterioscleroticextremitiesbypass graftlegleftwithulcerationthigh (diffuse) (obliterans) (of) (senile) (with calcification)
  • Arteriosclerosis, arterioscleroticwithcritical limb ischemiabypass graftlegleftwithulcerationthigh (diffuse) (obliterans) (of) (senile) (with calcification)

Excludes1 — never code together — inherited from I70.3

The conditions below can never be reported together with I70.341 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • embolism or thrombus of bypass graft(s) of extremities (T82.8-)

Use additional code — inherited from I70

Report an additional code alongside I70.341 to fully describe the condition. I70.341 is sequenced first.

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Use additional code — inherited from I70.3

Report an additional code alongside I70.341 to fully describe the condition. I70.341 is sequenced first.

  • code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)

Use additional code — inherited from I70.34

Report an additional code alongside I70.341 to fully describe the condition. I70.341 is sequenced first.

  • code to identify severity of ulcer (L97.-)

Excludes2 — not included here — inherited from Chapter 9

The conditions below are not part of I70.341, but a patient may have both at the same time. When documentation supports it, I70.341 and the excluded code may both be reported.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Excludes2 — not included here — inherited from I70

The conditions below are not part of I70.341, but a patient may have both at the same time. When documentation supports it, I70.341 and the excluded code may both be reported.

  • arteriosclerotic cardiovascular disease (I25.1-)
  • arteriosclerotic heart disease (I25.1-)
  • atheroembolism (I75.-)
  • cerebral atherosclerosis (I67.2)
  • coronary atherosclerosis (I25.1-)
  • mesenteric atherosclerosis (K55.1)
  • precerebral atherosclerosis (I67.2)
  • primary pulmonary atherosclerosis (I27.0)

How long has I70.341 existed?

I70.341 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the I70.34 family? (6)