CPT 75820Radiology

Vein x-ray arm/leg

CPT code 75820 covers a specialized x-ray procedure that uses contrast dye to visualize veins in the arms or legs, helping doctors identify blood clots, blockages, or vein abnormalities. This diagnostic imaging test is commonly ordered when patients have swelling, pain, or suspected vascular problems in their extremities.

Showing rates for

National Average

Base Medicare rate

$102.86

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

1.05

PE RVU (NF)

2.05

MP RVU

0.08

Total RVU

3.18

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Always append RT or LT modifier to specify which extremity was imaged, as laterality is required for accurate claims processing
Impact: Prevents automatic denials for missing laterality information, which account for 15-20% of initial rejections for this code
Bill contrast media separately using HCPCS codes (e.g., Q9966-Q9967) in addition to 75820, as contrast is not included in the procedure reimbursement
Impact: Recovers additional $40-$120 per procedure depending on contrast type and volume used
Document the specific medical indication (suspected DVT, pre-surgical mapping, etc.) and why alternative imaging (ultrasound) was insufficient or contraindicated
Impact: Reduces medical necessity denials by approximately 25-30%, as many payers require justification for invasive venography over non-invasive ultrasound
When performed in a hospital setting, verify whether billing globally or splitting professional/technical components based on your contractual arrangement
Impact: Incorrect component billing can result in 40-60% payment reduction or complete denial; global rate is $102.86, components must be split appropriately
Ensure the radiologist's interpretation report includes all required elements: indication, technique, findings, and impression before claim submission
Impact: Incomplete documentation is cited in 30% of audits and can trigger recoupment of the entire $102.86 payment
Check NCCI edits before billing 75820 with interventional procedures on the same extremity; use modifier 59 only when procedures are truly distinct
Prevents denials for bundled services while avoiding inappropriate unbundling that could trigger fraud investigations

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Frequently asked questions

What is the 2025 Medicare reimbursement rate for CPT code 75820?

The 2025 Medicare national average reimbursement for CPT 75820 is $102.86 for both facility and non-facility settings. This rate is based on 3.18 total RVUs multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary by geographic locality based on the GPCI adjustment.

Does CPT 75820 include both arms and legs or just one extremity?

CPT 75820 covers venography of a single extremity only (one arm or one leg). If bilateral venography is performed, you should bill 75820 twice with RT modifier for the right extremity and LT modifier for the left extremity, each requiring separate medical necessity documentation.

Can I bill for contrast media separately with CPT 75820?

Yes, contrast media should be billed separately using appropriate HCPCS codes (such as Q9966-Q9967) as the contrast agent is not included in the 75820 reimbursement. Document the specific type and volume of contrast used in the procedure note to support the additional billing.

What modifiers are required when billing CPT code 75820?

Laterality modifiers RT (right) or LT (left) are required to specify which extremity was imaged. Additionally, use modifier 26 for professional component only, TC for technical component only, or bill globally without modifiers if performing and interpreting the complete service.

Is prior authorization required for CPT 75820 venography?

Most Medicare Advantage plans and commercial payers require prior authorization for 75820 due to availability of less invasive alternatives like venous duplex ultrasound. Check specific payer policies before scheduling. You typically need to document why non-invasive imaging is inadequate to obtain authorization approval.

What diagnosis codes support medical necessity for CPT 75820?

Common supporting diagnoses include I82.4 (acute DVT of lower extremity), I82.6 (acute DVT of upper extremity), I87.1 (compression of vein), I87.2 (venous insufficiency), R22.4 (localized swelling of lower limb), and Z85.89 (personal history of malignant neoplasm requiring vein mapping). Documentation must link the diagnosis to the specific extremity imaged.

How does CPT 75820 differ from venous duplex ultrasound codes?

CPT 75820 is an invasive x-ray procedure using contrast dye injection and fluoroscopy, while venous duplex ultrasound (93970-93971) is non-invasive using sound waves. Ultrasound is typically first-line imaging; venography is reserved for cases where ultrasound is non-diagnostic, technically inadequate, or when detailed venous mapping is needed for surgical planning.