ICD10
ICD-10 Code I70.36: Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene
Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
When is it used?
- May be used when a clinician documents atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I70-I79Diseases of arteries, arterioles and capillaries
category
I70Atherosclerosis
category
I70.3Atherosclerosis of unspecified type of bypass graft(s) of the extremities
currentI70.3
Official coding notes
Includes
- any condition classifiable to I70.31-, I70.32-, I70.33-, I70.34-, I70.35
- chronic limb-threatening ischemia of unspecified type of bypass graft(s) of the extremities with gangrene
- critical limb ischemia of unspecified type of bypass graft(s) of the extremities with gangrene
Applicable to
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
Use additional code
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
CardiologistGeneral Physician
Related codes
I70.361Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, right legcodeI70.362Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, left legcodeI70.363Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, bilateral legscodeI70.368Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, other extremitycodeI70.369Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene, unspecified extremitycode
Sibling codes
I70.30Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremitiesI70.31Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudicationI70.32Atherosclerosis of unspecified type of bypass graft(s) of the extremities with rest painI70.33Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulcerationI70.34Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulcerationI70.35Atherosclerosis of unspecified type of bypass graft(s) of other extremity with ulcerationbillableI70.39Other atherosclerosis of unspecified type of bypass graft(s) of the extremities
Coding guidelines
Common synonyms
Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangreneAtherosclerosis of type of bypass graft(s) of the extremities with gangreneAtherosclerosis of unspecified type of bypass graftAtherosclerosis of unspecified type of bypass graft s of the extremities with gangrene
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.