ICD10BillableValid for clinical use
ICD-10 Code I77.9: Disorder of arteries and arterioles, unspecified
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. 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 disorder of arteries and arterioles, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
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.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I70-I79Diseases of arteries, arterioles and capillaries
category
I77Other disorders of arteries and arterioles
currentI77
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
CardiologistGeneral Physician
Related codes
I77.0Arteriovenous fistula, acquiredcodeI77.1Stricture of arterycodeI77.2Rupture of arterycodeI77.3Arterial fibromuscular dysplasiacodeI77.4Celiac artery compression syndromecodeI77.5Necrosis of arterycodeI77.6Arteritis, unspecifiedcodeI77.7Other arterial dissectioncategoryI77.8Other specified disorders of arteries and arteriolescategory
Sibling codes
I77.0Arteriovenous fistula, acquiredbillableI77.1Stricture of arterybillableI77.2Rupture of arterybillableI77.3Arterial fibromuscular dysplasiabillableI77.4Celiac artery compression syndromebillableI77.5Necrosis of arterybillableI77.6Arteritis, unspecifiedbillableI77.7Other arterial dissectionI77.8Other specified disorders of arteries and arterioles
Mapped diagnoses and classifications
SNOMED_CT 448158001high
Abnormality of thoracoabdominal aorta
Source: SNOMED International ICD-10 map
SNOMED_CT 871669005high
Acquired abnormality of aorta due to congenital heart anomaly
Source: SNOMED International ICD-10 map
SNOMED_CT 871656006high
Acquired abnormality of aortic arch branch
Source: SNOMED International ICD-10 map
SNOMED_CT 709582000high
Arterial complication of procedure
Source: SNOMED International ICD-10 map
SNOMED_CT 8901009high
Arteriolitis
Source: SNOMED International ICD-10 map
SNOMED_CT 281717005high
Arteriovascular degeneration
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
I77.9
Common synonyms
Disorder of arteries and arterioles, unspecifiedDisorder of arteries and arterioles
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.