I70-I79
Medium Complexity
Diseases of arteries, arterioles and capillaries
Primary Specialty: Cardiology
Last Updated: 2025-09-10
ICD-10 Codes (125)
98 billable19 category headers
I71I71.0I71.00Billable
I71.01I71.010Billable
I71.011Billable
I71.012Billable
I71.019Billable
I71.02Billable
I71.03Billable
I71.1I71.10Billable
I71.11Billable
I71.12Billable
I71.13Billable
I71.2I71.20Billable
I71.21Billable
I71.22Billable
I71.23Billable
I71.3I71.30Billable
I71.31Billable
I71.32Billable
I71.33Billable
I71.4I71.40Billable
I71.41Billable
I71.42Billable
I71.43Billable
I71.5I71.50Billable
I71.51Billable
I71.52Billable
I71.6I71.60Billable
I71.61Billable
I71.62Billable
I71.8Billable
I71.9Billable
I72I72.0Billable
I72.1Billable
I72.2Billable
I72.3Billable
I72.4Billable
I72.5Billable
I72.6Billable
I72.8Billable
I72.9Billable
I73I73.0I73.00Billable
I73.01Billable
I73.1Billable
I73.8I73.81Billable
I73.89Billable
I73.9Billable
I74I74.0I74.01Billable
I74.09Billable
I74.1I74.10Billable
I74.11Billable
I74.19Billable
I74.2Billable
I74.3Billable
I74.4Billable
I74.5Billable
I74.8Billable
I74.9Billable
I75I75.0I75.01I75.011Billable
I75.012Billable
I75.013Billable
I75.019Billable
I75.02I75.021Billable
I75.022Billable
I75.023Billable
I75.029Billable
I75.8I75.81Billable
I75.89Billable
I76Billable
I77I77.0Billable
I77.1Billable
I77.2Billable
I77.3Billable
I77.4Billable
I77.5Billable
I77.6Billable
I77.7I77.70Billable
I77.71Billable
I77.72Billable
I77.73Billable
I77.74Billable
I77.75Billable
I77.76Billable
I77.77Billable
I77.79Billable
I77.8I77.81I77.810Billable
I77.811Billable
I77.812Billable
I77.819Billable
I77.82Billable
I77.89Billable
I77.9Billable
I78I78.0Billable
I78.1Billable
I78.8Billable
I78.9Billable
I79I79.0Billable
I79.1Billable
I79.8Billable
Updates & Changes
FY 2026 Updates
Current Year
New Codes (1)
I16.9
Hypertensive crisis, unspecified, with target organ damage
Revised Codes (2)
I12.0
Hypertensive chronic kidney disease with stage 5 chronic kidney disease - updated staging
I15.9
Secondary hypertension, unspecified - enhanced documentation requirements
Deleted Codes
No codes deleted in this range for FY 2026
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for I70-I79 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
high priority
The ICD-10 code range I70-I79 pertains to diseases of arteries, arterioles, and capillaries. These codes are used to document various vascular diseases, including atherosclerosis, aneurysms, and peripheral vascular diseases. The codes in this range are detailed, allowing for specific documentation of the disease location, type, and any associated complications.
Key Usage Points:
- •Always code to the highest level of specificity.
- •Identify the type of vascular disease, its location, and any complications.
- •Use additional codes to identify any associated conditions.
- •For atherosclerosis, specify the type of plaque.
- •For aneurysms, specify the location and whether it's ruptured or unruptured.
Coding Guidelines
When to Use:
- ✓When a patient has been diagnosed with atherosclerosis.
- ✓When a patient has an aneurysm, ruptured or unruptured.
- ✓When a patient has peripheral vascular disease.
- ✓When a patient has a noninfective disorder of arteries, arterioles, and capillaries.
- ✓When a patient has other disorders of arteries and arterioles.
When NOT to Use:
- ✗When a patient has a disease of veins, lymphatic vessels, or lymph nodes.
- ✗When a patient has a disease of the respiratory system.
- ✗When a patient has a disease of the digestive system.
- ✗When a patient has a disease of the nervous system.
- ✗When a patient has a disease of the musculoskeletal system.
Code Exclusions
Always verify exclusions with the latest ICD-10-CM official guidelines.
Documentation Requirements
Documentation for diseases of arteries, arterioles, and capillaries should be comprehensive, including the type of disease, its location, and any associated complications. The type of plaque for atherosclerosis and the status of an aneurysm (ruptured/unruptured) should also be documented.
Clinical Information:
- •Type of vascular disease
- •Location of the disease
- •Any associated complications
- •Type of plaque for atherosclerosis
- •Status of aneurysm (ruptured/unruptured)
Supporting Evidence:
- •Medical history
- •Clinical findings
- •Diagnostic test results
- •Treatment plans
Good Documentation Example:
Patient diagnosed with atherosclerosis of the aorta with unstable angina. The plaque is calcified.
Poor Documentation Example:
Patient diagnosed with atherosclerosis.
Common Documentation Errors:
- âš Not specifying the type of vascular disease
- âš Not identifying the location of the disease
- âš Not documenting any associated complications
- âš Not specifying the type of plaque for atherosclerosis
- âš Not documenting the status of an aneurysm
Range Statistics
9
Total Codes
98
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:9
Coding Complexity
Medium
Complexity Rating
The complexity of coding diseases of arteries, arterioles, and capillaries lies in the need to accurately identify the type of disease, its location, and any associated complications. The type of plaque for atherosclerosis and the status of an aneurysm also need to be specified.
Key Factors:
- â–¸Identifying the type of vascular disease
- â–¸Identifying the location of the disease
- â–¸Documenting any associated complications
- â–¸Specifying the type of plaque for atherosclerosis
- â–¸Documenting the status of an aneurysm
Specialty Focus
These codes are primarily used by cardiologists, vascular surgeons, and interventional radiologists. They allow for detailed documentation of vascular diseases, which is crucial for treatment planning and risk assessment.
Primary Specialties:
Cardiology
40%
Vascular Surgery
30%
Interventional Radiology
30%
Clinical Scenarios:
- • Patient diagnosed with atherosclerosis of the aorta with unstable angina.
- • Patient diagnosed with unruptured aneurysm of the abdominal aorta.
- • Patient diagnosed with peripheral vascular disease of the lower limbs.
- • Patient diagnosed with noninfective arteritis of the carotid artery.
- • Patient diagnosed with other specified disorders of arteries and arterioles.
Resources & References
Resources for coding diseases of arteries, arterioles, and capillaries include the ICD-10-CM official guidelines, clinical references, and educational materials.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- American Health Information Management Association (AHIMA) guidelines
- American Academy of Professional Coders (AAPC) guidelines
Clinical References:
- American Heart Association (AHA) guidelines
- American College of Cardiology (ACC) guidelines
Educational Materials:
- ICD-10-CM Coding Handbook
- ICD-10-CM Coding Workbook
Frequently Asked Questions
How do I code for atherosclerosis with unstable angina?
First, identify the code for atherosclerosis of the specific artery. Then, use an additional code to identify the unstable angina.