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ICD-10 Guide
ICD-10 CodesI71.012

I71.012

Billable

Dissection of descending thoracic aorta

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 I71.012 is a billable code used to indicate a diagnosis of dissection of descending thoracic aorta.

Key Diagnostic Point:

Dissection of the descending thoracic aorta is a serious cardiovascular condition characterized by a tear in the inner layer of the aortic wall, leading to the separation of the layers of the aorta. This condition typically presents with sudden onset of severe chest or back pain, often described as a 'tearing' sensation, and may be accompanied by symptoms such as shortness of breath, hypotension, and syncope. The descending thoracic aorta is the segment of the aorta that runs down through the thorax, and its dissection can lead to life-threatening complications, including aortic rupture or compromised blood flow to vital organs. Disease progression can vary; if untreated, the mortality rate is high, particularly within the first few days. Diagnosis often involves imaging studies such as CT angiography or MRI to visualize the aorta and confirm the presence of dissection. Early recognition and intervention are crucial to improving outcomes, and management may include surgical repair or endovascular techniques depending on the extent of the dissection and the patient's overall health status.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misclassification of the type of dissection.
  • Documentation gaps may arise if the clinical presentation is not thoroughly recorded.
  • Billing challenges often occur due to the need for extensive documentation to justify surgical procedures.

Specialty Focus

Medical Specialties

Cardiology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Cardiothoracic Surgery

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of I71.012 lies in its potential for high morbidity and mortality if not promptly diagnosed and treated. Population health impact is considerable, as aortic dissections can lead to significant healthcare utilization, including emergency interventions and prolonged hospital stays. Quality measures focus on timely diagnosis and treatment, which are critical for improving patient outcomes. Epidemiologically, the incidence of aortic dissection is increasing, necessitating awareness and education among healthcare providers.

ICD-9 vs ICD-10

The clinical significance of I71.012 lies in its potential for high morbidity and mortality if not promptly diagnosed and treated. Population health impact is considerable, as aortic dissections can lead to significant healthcare utilization, including emergency interventions and prolonged hospital stays. Quality measures focus on timely diagnosis and treatment, which are critical for improving patient outcomes. Epidemiologically, the incidence of aortic dissection is increasing, necessitating awareness and education among healthcare providers.

Reimbursement & Billing Impact

Reimbursement considerations include the complexity of the case and the necessity for surgical intervention. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for procedures. Best practices include ensuring that all clinical findings are well-documented and that coding accurately reflects the severity and specifics of the condition to avoid billing issues.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for I00-I99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by I71.012?

I71.012 specifically covers dissection of the descending thoracic aorta, which may occur in the context of aortic aneurysms or as a standalone condition. It is critical to differentiate it from other types of aortic dissections.

When should I71.012 be used instead of related codes?

I71.012 should be used when the dissection specifically involves the descending thoracic aorta, as opposed to the ascending aorta or other segments. Accurate imaging and clinical findings are essential for appropriate code selection.

What documentation supports I71.012?

Documentation should include detailed clinical notes describing the patient's symptoms, imaging results confirming the dissection, and any interventions performed. This may include CT or MRI reports and surgical notes if applicable.