CPT 77012Radiology

Ct scan for needle biopsy

CPT 77012 covers the use of CT scan imaging to guide a doctor's needle during a biopsy procedure. The CT helps the physician see exactly where to place the needle to obtain a tissue sample safely and accurately.

Showing rates for

National Average

Base Medicare rate

$122.27

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

1.5

PE RVU (NF)

2.19

MP RVU

0.09

Total RVU

3.78

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

NCCI bundling edits

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Billing tips

Always bill 77012 separately from the biopsy procedure code (e.g., 32400, 47000, 49180) - these are separately reportable services
Impact: Ensures full reimbursement of $122.27 for imaging guidance in addition to the biopsy procedure payment, preventing undercoding losses of 30-40%
Document the number of CT images obtained, the anatomical approach, and real-time adjustments made during needle placement
Impact: Reduces audit risk and denial rate by approximately 65% by demonstrating active guidance rather than pre-procedural localization only
Do not bill 77012 with a diagnostic CT scan (70000-76999 series) of the same anatomical area on the same date without modifier 59 and clear documentation of separate sessions
Impact: Prevents automatic denials for bundling; improper coding can result in loss of the entire $122.27 and potential audit flags
Verify that the radiologist's report explicitly describes the guidance component, not just image interpretation
Impact: Critical for Medicare compliance; missing guidance documentation is the #1 reason for recoupment during post-payment audits
When multiple biopsies are performed in different anatomical sites during the same session, bill 77012 only once unless separate CT guidance sessions are documented
Impact: Prevents overbilling denials while ensuring appropriate payment; multiple units without documentation can trigger fraud alerts
Check LCD and NCD policies for your MAC regarding medical necessity requirements for CT versus ultrasound guidance
Some payers require documentation justifying CT over less expensive ultrasound guidance; failure to document can result in downcoding or denial of the $122.27 claim

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 77012 in 2025?

The 2025 Medicare national average reimbursement for CPT 77012 is $122.27 for both facility and non-facility settings. This rate is based on 3.78 total RVUs multiplied by the 2025 conversion factor of 32.3465.

Can I bill CPT 77012 with a diagnostic CT scan on the same day?

Yes, but with careful documentation. You must clearly document that the diagnostic CT and the CT guidance were separate sessions with distinct purposes. The diagnostic CT evaluates the lesion, while 77012 represents real-time guidance during needle placement. Use modifier 59 on 77012 and ensure separate reports document each component to avoid bundling denials.

What is the difference between CPT 77012 and 77021?

CPT 77012 is for CT guidance during needle placement procedures like biopsies, while CPT 77021 is for magnetic resonance (MR/MRI) guidance for needle placement. The choice depends on the imaging modality used for guidance during the procedure, not the diagnostic imaging performed beforehand.

How many times can I bill 77012 in one session?

Typically bill 77012 only once per session, regardless of the number of needle passes or samples obtained from the same anatomical target. If biopsies of completely separate anatomical sites requiring distinct CT guidance sessions are performed, you may bill multiple units with modifier 59 and comprehensive documentation supporting the medical necessity of separate guidance procedures.

What RVU value does CPT 77012 have in 2025?

CPT 77012 has a total RVU of 3.78 in 2025, consisting of 1.5 work RVU, 2.19 practice expense RVU, and 0.09 malpractice RVU. The practice expense RVU is identical for both facility and non-facility settings.

Do I need modifier 26 for CPT 77012?

Generally no. The identical facility and non-facility rates ($122.27) indicate that 77012 typically represents only the professional component (supervision and interpretation). However, verify your specific billing scenario with your facility's billing policies, as some situations may still require modifier 26 for clarity in hospital settings.

What documentation is required to bill CPT 77012 without denials?

You must document medical necessity for CT guidance, the anatomical location and approach, multiple CT images obtained during active needle placement (not just pre-procedure), real-time adjustments made based on imaging, confirmation of final needle position, and the radiologist's interpretation. The documentation should clearly distinguish guidance from any diagnostic imaging and demonstrate ongoing physician involvement throughout the needle placement process.