Several 2026 CPT® updates impacting vascular and coronary interventions introduce clarifications around lesion classification, procedural coding, and documentation requirements.

While many core procedure codes remain the same, the biggest operational impact for practices will likely come from stronger documentation expectations and clearer coding guidance for complex procedures.

Below is a brief overview of the most relevant updates physicians and practice administrators should be aware of heading into 2026.

1. Diagnostic Angiography Requires Clear Documentation

Diagnostic angiography may still be reported separately from an intervention when appropriate. However, the 2026 guidance emphasizes that documentation must clearly explain why the diagnostic study was necessary.

Examples include:

• No prior angiographic study
• Prior imaging that was inadequate
• A change in the patient’s clinical condition
• Diagnostic findings that led to intervention

Without documentation supporting medical necessity, payers may bundle the diagnostic study into the procedure.

2. New Definitions for Vascular Lesion Complexity

The 2026 updates introduce clearer definitions for straightforward vs. complex lesions in lower extremity revascularization procedures.

Straightforward lesions

• 70–99% stenosis with contrast flow through the vessel

Complex lesions

• 100% occlusion
• No antegrade flow (chronic total occlusion)

These definitions help guide coding and documentation for lower extremity interventions.

3. Clarified Bundling Rules for Vascular Procedures

The 2026 guidance also clarifies which services are bundled into vascular interventions and which may still be billed separately.

Bundled services typically include

• vascular access
• catheterization
• imaging supervision and interpretation
• completion angiography

Separately billable services may include

• diagnostic angiography (when criteria are met)
• intravascular ultrasound (IVUS)
• ultrasound-guided vascular access
• thrombectomy when not inherent to atherectomy

Understanding these distinctions can help reduce denials and coding inconsistencies.

4. PCI and Coronary Intervention Updates

Several Percutaneous Coronary Intervention (PCI) codes have been revised for 2026.

One notable addition is:

92945 ➝ Chronic total occlusion PCI using combined antegrade and retrograde techniques

This new code reflects hybrid CTO approaches that are increasingly used in complex coronary interventions.

5. New Drug-Delivery Balloon Codes

The 2026 updates also introduce Category III codes for intracoronary drug-delivery balloon procedures, which are used to track emerging cardiovascular technologies.

These include:

• 0913T ➝ base code
• +0914T ➝ add-on code for additional lesions

Why These Updates Matter

Although many of these updates clarify existing coding rules, they place greater emphasis on documentation accuracy and coding consistency.

Incomplete or unclear documentation may increase the risk of:

• claim denials
• downcoding
• delayed reimbursement
• payer audits

Practices performing vascular or coronary interventions should review documentation workflows and coding protocols to ensure they align with 2026 CPT guidance.

Reference Guides

For a full breakdown of the updates, see the following resources:

• 2025 – 2026 Vascular & Coronary CPT Comparison
• 2026 Vascular & Coronary Intervention Coding Cheat Sheet 

These quick-reference documents outline the coding logic, territories, bundling rules, and new codes introduced for 2026.