ICD10BillableValid for clinical use
ICD-10 Code I77.75: Dissection of other precerebral arteries
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 dissection of other precerebral arteries 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
category
I77.7Other arterial dissection
currentI77.7
Official coding notes
Inclusion terms
- Dissection of basilar artery (trunk)
Excludes2 (may code together if documented)
- aneurysm of carotid artery (I72.0)
- aneurysm of other precerebral arteries (I72.5)
- aneurysm of vertebral artery (I72.6)
- dissection of carotid artery (I77.71)
- dissection of vertebral artery (I77.74)
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
I77.70Dissection of unspecified arterycodeI77.71Dissection of carotid arterycodeI77.72Dissection of iliac arterycodeI77.73Dissection of renal arterycodeI77.74Dissection of vertebral arterycodeI77.76Dissection of artery of upper extremitycodeI77.77Dissection of artery of lower extremitycodeI77.79Dissection of other specified arterycode
Sibling codes
I77.70Dissection of unspecified arterybillableI77.71Dissection of carotid arterybillableI77.72Dissection of iliac arterybillableI77.73Dissection of renal arterybillableI77.74Dissection of vertebral arterybillableI77.76Dissection of artery of upper extremitybillableI77.77Dissection of artery of lower extremitybillableI77.79Dissection of other specified arterybillable
Coverage-related procedures and services
CPT 70545high
MAGNETIC RESONANCE ANGIOGRAPHY, HEAD; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70544high
MAGNETIC RESONANCE ANGIOGRAPHY, HEAD; WITHOUT CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70546high
MAGNETIC RESONANCE ANGIOGRAPHY, HEAD; WITHOUT CONTRAST MATERIAL(S), FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SEQUENCES
Source: CMS coverage guidance
CPT 70548high
MAGNETIC RESONANCE ANGIOGRAPHY, NECK; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70547high
MAGNETIC RESONANCE ANGIOGRAPHY, NECK; WITHOUT CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70549high
MAGNETIC RESONANCE ANGIOGRAPHY, NECK; WITHOUT CONTRAST MATERIAL(S), FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SEQUENCES
Source: CMS coverage guidance
Coding guidelines
Common synonyms
Dissection of other precerebral arteries
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.