ICD10
ICD-10 Code I70.9: Other and unspecified atherosclerosis
Reviewed by HealthAssure Clinical TeamUpdated 26 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 other and unspecified atherosclerosis 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
currentI70
Official coding notes
Excludes2 (may code together if documented)
- disorders of pyrophosphate metabolism (E83.82-)
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
Sibling codes
I70.0Atherosclerosis of aortabillableI70.1Atherosclerosis of renal arterybillableI70.2Atherosclerosis of native arteries of the extremitiesI70.3Atherosclerosis of unspecified type of bypass graft(s) of the extremitiesI70.4Atherosclerosis of autologous vein bypass graft(s) of the extremitiesI70.5Atherosclerosis of nonautologous biological bypass graft(s) of the extremitiesI70.6Atherosclerosis of nonbiological bypass graft(s) of the extremitiesI70.7Atherosclerosis of other type of bypass graft(s) of the extremitiesI70.8Atherosclerosis of other arteriesbillable
Mapped diagnoses and classifications
SNOMED_CT 361133006high
Arteriosclerosis obliterans
Source: SNOMED International ICD-10 map
SNOMED_CT 72092001high
Arteriosclerotic vascular disease
Source: SNOMED International ICD-10 map
SNOMED_CT 441574008high
Atherosclerosis of artery
Source: SNOMED International ICD-10 map
SNOMED_CT 129573006high
Atherosclerotic occlusive disease
Source: SNOMED International ICD-10 map
SNOMED_CT 838314000high
Calcific arteriolopathy due to uraemia
Source: SNOMED International ICD-10 map
SNOMED_CT 39823006high
Generalized atherosclerosis
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
I70.9
Replacement codes
I70.90 — Unspecified atherosclerosisI70.91 — Generalized atherosclerosisI70.92 — Chronic total occlusion of artery of the extremities
Common synonyms
Other and unspecified atherosclerosisOther and atherosclerosis
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.