Aspirate/inj ganglion cyst

CPT code 20612 covers the procedure where a doctor uses a needle to drain fluid from a ganglion cyst (a fluid-filled lump near joints or tendons) or injects medication into it. This is a simple in-office procedure that typically takes just a few minutes.

Showing rates for

National Average

Base Medicare rate

$63.72

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

0.7

PE RVU (NF)

1.17

MP RVU

0.1

Total RVU

1.97

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

NCCI bundling edits

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Billing tips

Always document whether aspiration, injection, or both were performed, with specific volume of fluid aspirated (in mL) and medication/dosage injected
Impact: Missing documentation leads to 25-30% denial rate on audits; specifying 'aspirated 2.5mL clear viscous fluid' and 'injected 1mL triamcinolone 40mg/mL' supports medical necessity
Bill in non-facility setting when performed in office to capture the $23.61 higher reimbursement ($63.72 vs $40.11)
Impact: Performing 20 of these procedures monthly in-office generates $5,652 additional annual revenue compared to hospital outpatient setting
Do not bill 20612 with ultrasound guidance code 76942 unless imaging guidance was actually used and separately documented; ganglion cyst procedures are typically palpation-guided
Impact: Inappropriate bundling of 76942 adds $50-75 but creates high audit risk and potential false claims exposure; only use when cyst is deep or difficult to palpate and imaging is medically necessary
When billing with modifier 25 for same-day E/M, ensure documentation clearly separates the E/M service from the procedure decision and performance
Impact: Clear separation prevents modifier 25 denials that reject $75-150 in E/M charges; document E/M service first, then 'Based on examination findings, decision made to aspirate/inject ganglion cyst' as bridge
Report each distinct ganglion cyst separately when treating multiple cysts; use modifier 59 or XS and document separate anatomical sites
Impact: Properly coding 2-3 distinct cysts can generate $80-127 in additional reimbursement per session rather than only getting paid for one
Verify the ganglion cyst diagnosis code is specific (M67.4- series with laterality) and supports medical necessity based on patient symptoms

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Frequently asked questions

How much does Medicare pay for CPT code 20612 in 2025?

Medicare pays $63.72 for CPT 20612 when performed in a non-facility setting (physician office) and $40.11 when performed in a facility setting (hospital outpatient department) based on the 2025 national average. Actual payment may vary by geographic locality based on the GPCI adjustment factors.

Can I bill an office visit with CPT 20612 on the same day?

Yes, you can bill an E/M office visit with CPT 20612 on the same day if the E/M service is separately identifiable and significant beyond the usual pre-procedure and post-procedure care. You must append modifier 25 to the E/M code and ensure documentation clearly distinguishes the E/M service from the decision to perform and the performance of the aspiration/injection.

What is the difference between CPT 20612 and 20606?

CPT 20612 is for aspiration and/or injection of a ganglion cyst specifically, while CPT 20606 is for aspiration and/or injection of an intermediate joint or bursa (e.g., elbow, wrist joint, ankle). The key distinction is that 20612 targets the ganglion cyst itself (a fluid-filled sac), not the joint space. Using the wrong code based on anatomical target can result in incorrect reimbursement.

Does CPT 20612 require ultrasound guidance?

No, CPT 20612 does not include or require ultrasound guidance. Most ganglion cysts are palpable and superficial, making the procedure straightforward without imaging. If ultrasound guidance is medically necessary and used (for deep or difficult-to-palpate cysts), you can separately bill CPT 76942, but this must be clearly documented with explanation of medical necessity.

How many times can CPT 20612 be billed for the same patient?

There is no specific limit on how many times CPT 20612 can be billed for the same patient, but medical necessity must be documented for each occurrence. Ganglion cysts commonly recur after aspiration (50-70% recurrence rate), justifying repeat procedures. However, frequent repetition within short timeframes may trigger utilization review, so document recurrence, symptom return, and patient preference for continued conservative treatment over surgical excision.

What diagnosis codes are appropriate for billing CPT 20612?

The primary diagnosis codes for CPT 20612 are from the M67.4- series (ganglion) with appropriate specificity for location and laterality. Common codes include M67.431-M67.439 (ganglion of wrist), M67.441-M67.449 (ganglion of hand), M67.471-M67.479 (ganglion of ankle and foot). Always include laterality (right/left) and ensure the diagnosis supports medical necessity with documented symptoms.

What are the work RVUs for CPT code 20612?

CPT code 20612 has 0.7 work RVUs, 1.17 practice expense RVUs (non-facility), 0.44 practice expense RVUs (facility), and 0.1 malpractice RVUs for a total of 1.97 RVUs. When multiplied by the 2025 conversion factor of 32.3465, this yields the Medicare payment rates of $63.72 (non-facility) and $40.11 (facility).