Abdominal Aortogram CPT Codes 2026: 75625, 75630 & Lower Extremity Angiography

Last Updated on October 21, 2026

CPT 75625 is used for qualifying abdominal aortography, while CPT 75630 covers abdominal aortography with bilateral iliofemoral runoff. For lower extremity angiography, CPT 75710 applies to unilateral imaging and CPT 75716 to bilateral imaging, when separately reportable.

Selecting the appropriate CPT code depends on the anatomical territory imaged, catheter position, contrast injection sequence, and whether additional extremity imaging qualifies as a separate diagnostic study.

In interventional radiology, documentation must clearly distinguish abdominal aortography, combined runoff imaging, and separately performed extremity angiography to support accurate coding and prevent duplicate reporting.

Abdominal Aortogram CPT Codes at a Glance

The primary codes in abdominal aortography and extremity angiography describe either the imaging performed or the catheterization used to perform it.

CMS continues to recognize 75625, 75630, 75710, and 75716 within extracardiac angiography coding. 

CPT 75625 Abdominal Aortography

CPT 75625 reports a qualifying abdominal aortographic study without the bilateral iliofemoral runoff represented by 75630. Code selection should primarily reflect the diagnostic imaging performed and how that imaging is documented.

Coding Checkpoint

• A complete qualifying abdominal aortographic study was performed
• The imaging territory is clearly documented
• Extremity imaging, if performed, is separately identifiable
• Any catheter repositioning relevant to separate imaging is described

Incidental visualization of nearby vessels should not automatically be treated as a separately performed extremity angiographic study.

CPT 75630 Abdominal Aortography With Runoff

CPT 75630 represents abdominal aortography that includes qualifying bilateral iliofemoral runoff imaging. The procedure report should establish that the runoff was intentionally performed as part of the diagnostic study rather than simply being visible on the images.

Key documentation should establish:

• Abdominal aortic imaging
• Bilateral runoff
• Imaging territory
• Findings on both sides
• Whether a separate extremity study was subsequently performed

CPT 75625 vs 75630

The distinction between these codes depends primarily on the extent of diagnostic imaging performed.

The operative report should distinguish a qualifying bilateral runoff study from separately performed extremity angiography. When additional extremity imaging is reported separately, the procedural sequence and supporting documentation become particularly important.

Lower Extremity Angiography CPT Codes 75710 and 75716

Once dedicated extremity angiography is performed, unilateral versus bilateral imaging becomes the primary distinction.

CPT 75710 represents qualifying angiography of one extremity, while CPT 75716 represents qualifying bilateral extremity angiography.

Common Coding Mistake
Reporting two units of 75710 simply because both legs were imaged may overlook whether the bilateral code 75716 more accurately represents the service. The procedure report should make unilateral or bilateral imaging clear without requiring the coder to infer laterality from scattered findings.

Aortic Catheter Placement Codes 36200 and 36160

Catheter placement codes describe how the aorta was accessed and catheterized, while CPT 75625, 75630, 75710, and 75716 describe the diagnostic imaging performed.

CPT 36200

36200 describes nonselective introduction of a catheter into the aorta. The report should identify the access route and confirm that the catheter was advanced into the aorta.

CPT 36160

CPT 36160 applies to translumbar aortic catheterization. The documented access route therefore becomes an important distinction between these catheterization codes.

If selective catheterization beyond the aorta is performed, coders should review the applicable selective vascular catheterization hierarchy rather than relying on CPT 36200 alone. For a broader explanation of selective and nonselective catheterization, see our Interventional Radiology CPT Codes guide.

Coding Scenarios Based on Catheter Position

Aortography coding becomes easier when the study is reconstructed in procedural sequence rather than by looking at individual codes in isolation.

Scenario 1: Abdominal Aortography Only

Procedure: Femoral arterial access → Catheter advanced into the aorta → Complete abdominal aortographic imaging → No separately performed extremity angiography.

Potential coding: 36200 + 75625, when documentation and payer requirements support both services.

Scenario 2: Aortography With Bilateral Runoff

Procedure: Aortic catheter placement → Abdominal aortography → Bilateral iliofemoral runoff performed as part of the study → No separate repositioned extremity study.

Potential coding: 36200 + 75630, when supported.

Scenario 3: Abdominal Study Followed by Separate Leg Angiography

Procedure: Initial abdominal aortogram → Catheter repositioned for additional extremity evaluation → Separate bilateral lower extremity imaging performed and interpreted.

Potential imaging codes to evaluate: 75625 + 75716, when separate diagnostic examinations are medically necessary, independently supported, and reportable under applicable coding rules. The catheterization code must be determined from the complete catheter pathway.

Bundling and NCCI Rules for Aortography

NCCI rules become particularly important when diagnostic angiography, catheterization, and vascular interventions occur during the same encounter.

Key controls include:

• Do not separately report a service already included in a more comprehensive procedure.
• Dye injections performed only to position or confirm catheter placement do not automatically support a separate diagnostic angiogram.
• Diagnostic angiography performed with a vascular intervention must meet applicable requirements for separate reporting.
• Documentation must establish medical necessity and a genuinely distinct diagnostic study where separate reporting is claimed.
• Modifier 59 or XU should only be used when the circumstances support a distinct service and applicable CPT, NCCI, Medicare, and payer requirements are met.

Using modifier 59 or XU simply to bypass a coding edit does not establish separate reportability.

When angiography is performed alongside vascular interventions, coding teams must also distinguish diagnostic imaging from services included in the intervention. This requires consistent application of interventional radiology billing and coding requirements to the documented procedure. 

Special situation: When abdominal aortography is performed during cardiac catheterization, the angiographic study must be complete and independently support separate reporting before CPT 75625 or 75630 is added. 

Professional and Technical Component Billing

Radiology services may be billed globally or divided into professional and technical components depending on the setting and billing arrangement.

Before applying modifier 26 or TC, confirm who performed the interpretation, who furnished the technical resources, and which entity is billing the service. For broader support with split-component billing and radiology reimbursement workflows, explore our Radiology Billing Services.

Diagnosis and Medical Necessity

Aortography should be linked to the documented clinical reason the diagnostic vascular study was necessary. Common indications may include abdominal aortic aneurysm, aortic or peripheral arterial stenosis, peripheral arterial disease, claudication, rest pain, embolism or thrombosis, and other documented vascular abnormalities.

Avoid building a fixed CPT-to-ICD-10 crosswalk into the coding workflow. Diagnosis selection should reflect the actual documented indication, diagnosis specificity, and current payer coverage requirements. When the clinical indication, diagnosis specificity, and documented findings do not align, a medical coding review can help identify discrepancies before the claim is submitted. 

Documentation That Determines the Final Code

Instead of documenting only “aortogram performed,” the procedure report should give the coder enough information to reconstruct the diagnostic study. The report should establish:

• Access route
• Initial catheter position
• Any clinically relevant catheter repositioning
• Abdominal aortic territory imaged
• Whether extremity imaging was separately performed
• Unilateral or bilateral coverage
• Laterality
• Separate injections when relevant
• Diagnostic findings and interpretation
• Medical necessity for the study

Each element should explain a different part of the procedure rather than forcing the coder to infer how the angiographic sequence occurred. When material documentation is unclear, clarification should occur before final code assignment. 

For hospital-based IR teams managing complex facility coding requirements, Facility Coding Services can support documentation-to-code validation and audit-ready coding workflows.

Why Aortography Claims Still Get Denied

Even when an individual CPT code is valid, the overall claim can fail when the report does not support the coding combination.

• Catheter position is unclear — The documentation does not support how the angiographic study was performed.
• Repositioning is missing from the report — A separately reported extremity study cannot be clearly distinguished from the original aortogram.
• Laterality is unclear — The record does not support the choice between 75710 and 75716.
• Imaging and catheter codes conflict — The codes do not reflect the procedural sequence documented in the operative report.
• Diagnosis does not support the study — The medical record does not establish why diagnostic angiography was reasonable and necessary.

When these issues have already reached the payer, Denial Management Services can help connect recovery with the underlying coding or documentation problem.

Strengthen Complex Angiography Claims With Specialized IR Billing Support

Aortography billing becomes difficult when the procedure report leaves the coder to reconstruct catheter movement or determine imaging territory from incomplete documentation. One unclear procedural detail can affect the catheterization code, diagnostic imaging code, modifier logic, and ultimately the defensibility of the claim.

AnnexMed helps interventional radiology practices and hospital-based IR departments bring greater control to complex vascular claims through specialized coding review, catheter hierarchy validation, angiography code assessment, NCCI compliance, professional and technical component billing, documentation review, and denial management.

By connecting procedural documentation with the final coded claim, AnnexMed helps identify inconsistencies before they move downstream into payer edits, denials, or reimbursement disputes.

FAQs