Double-Charge Detector 0218T

Njx paravert w/us lumb/sac — 59 bundling rules

If your bill lists 0218T alongside any of these codes as separate charges, it may be an unbundling error.

By Elena Vasquez , Medical Billing Research Lead · Published March 15, 2026 · Updated April 3, 2026

About the analyst

Elena Vasquez leads hospital billing pattern analysis at BillRazor Research. She focuses on identifying overcharges, markup outliers, and patient advocacy strategies. Expertise: hospital billing patterns, overcharge analysis, patient advocacy.

NCCI edit data

59 code pairs

Updated 2026-04-03

Bundling rules — 0218T

NCCI edits: these codes have billing restrictions when billed with 0218T

Research suggests 49–80% of hospital bills contain errors. Our system checks every line item against Medicare benchmarks.

Common unbundling errors — Other procedures

Unbundling occurs when medical providers bill two separate codes for services that should be combined into a single charge according to National Correct Coding Initiative (NCCI) rules. In other procedures including anesthesia, radiology, pathology, and miscellaneous support services, common unbundling patterns include separately billing diagnostic imaging with its professional interpretation when both should be included in one comprehensive code, and charging for basic monitoring or preparation services alongside the primary procedure when these components are considered integral parts of the main service. Another frequent error involves billing multiple pathology examination codes for what constitutes a single comprehensive analysis. With 809 other codes subject to bundling restrictions in the NCCI database, these errors create charges above the benchmark for patients who receive multiple bills for what should constitute one complete service. The potential difference between unbundled billing and correct coding practices can significantly impact patient financial responsibility, as they may face duplicate charges for components of care that medical coding standards define as a single billable service.

What to check on your bill

When reviewing itemized bills for procedure bundling issues, patients should examine several key areas to identify potential billing irregularities. Look for multiple procedure codes billed on the same date that represent components of a comprehensive service, such as separate charges for incision, repair, and closure when these steps are typically included in one primary procedure code. Watch for code patterns where related procedures share the same first three digits, as these often indicate services that should be bundled together under Medicare's Correct Coding Initiative. Check for appropriate modifier usage, particularly modifier 59 or XS, which legitimately allow separate billing when procedures are performed on different anatomical sites or during distinct sessions. Without proper modifiers, separately billed related procedures may represent charges above the benchmark. Compare your itemized statement against standard bundling practices for your specific procedure type to identify potential differences in billing patterns.

All bundling rules for 0218T

59 code pairs that have billing restrictions with this procedure.

Never bill together

May bill with modifier

Code	Description	Rule
0333T	Visual ep scr acuity auto	Never bill together
0464T	Visual ep test for glaucoma	Never bill together
0596T	Temp fml iu vlv-pmp 1st insj	May bill with modifier
0597T	Temp fml iu valve-pmp rplcmt	May bill with modifier
36591	Draw blood off venous device	Never bill together
36592	Collect blood from picc	Never bill together
51701	Insert bladder catheter	May bill with modifier
51702	Insert temp bladder cath	May bill with modifier
51703	Insert bladder cath complex	May bill with modifier
76000	Fluoroscopy <1 hr phys/qhp	May bill with modifier
76380	Cat scan follow-up study	May bill with modifier
76800	Us exam spinal canal	May bill with modifier
76942	Echo guide for biopsy	May bill with modifier
76998	Us guide intraop	May bill with modifier
77001	Fluoroguide for vein device	May bill with modifier
77002	Needle localization by xray	May bill with modifier
77003	Fluoroguide for spine inject	May bill with modifier
77012	Ct scan for needle biopsy	May bill with modifier
77021	Mri guidance ndl plmt rs&i	May bill with modifier
92652	Aep thrshld est mlt freq i&r	Never bill together
92653	Aep neurodiagnostic i&r	Never bill together
95822	Eeg coma or sleep only	Never bill together
95860	Needle emg 1 extremity	Never bill together
95861	Needle emg 2 extremities	Never bill together
95863	Needle emg 3 extremities	Never bill together
95864	Needle emg 4 extremities	Never bill together
95865	Needle emg larynx	Never bill together
95866	Needle emg hemidiaphragm	Never bill together
95867	Ndl emg cranial nrv musc uni	Never bill together
95868	Ndl emg cranial nrv musc bi	Never bill together
95869	Ndl emg thrc paraspinal musc	Never bill together
95870	Ndl emg lmtd std musc 1 xtr	Never bill together
95907	Nvr cndj tst 1-2 studies	Never bill together
95908	Nrv cndj tst 3-4 studies	Never bill together
95909	Nrv cndj tst 5-6 studies	Never bill together
95910	Nrv cndj test 7-8 studies	Never bill together
95911	Nrv cndj test 9-10 studies	Never bill together
95912	Nrv cndj test 11-12 studies	Never bill together
95913	Nrv cndj test 13/> studies	Never bill together
95925	Somatosensory testing	Never bill together
95926	Somatosensory testing	Never bill together
95927	Somatosensory testing	Never bill together
95928	C motor evoked uppr limbs	Never bill together
95929	C motor evoked lwr limbs	Never bill together
95930	Visual ep test cns w/i&r	Never bill together
95933	Blink reflex test	Never bill together
95937	Neuromuscular junction test	Never bill together
95938	Somatosensory testing	Never bill together
95939	C motor evoked upr&lwr limbs	Never bill together
95940	Ionm in operatng room 15 min	Never bill together

Showing 50 of 59 rules. Show all

FAQ — Other procedure bundling

What is NCCI bundling and what does 'bundled' mean on a medical bill?

NCCI bundling refers to the National Correct Coding Initiative rules that prevent certain procedure codes from being billed separately when performed together. When codes are bundled, one procedure is considered inclusive of another, meaning only the primary procedure should be billed rather than charging for each component separately.

How can I identify if codes were incorrectly unbundled on my bill?

Incorrectly unbundled codes appear as separate line items on your bill when NCCI rules indicate they should be grouped together under one primary procedure code. This typically occurs with anesthesia, radiology, pathology, and miscellaneous support services that are considered integral to the main procedure being performed.

What should I do if I find unbundled charges on my medical bill?

Contact your healthcare provider's billing department to request a review of the charges and provide documentation showing the NCCI bundling rules that apply. Request an itemized explanation of why the codes were billed separately and ask for a corrected bill that reflects proper bundling if no valid modifier justification exists.

When is it legitimate to use modifiers to override NCCI bundling rules?

Modifiers are appropriately used when procedures are performed on different anatomical sites, during separate patient encounters, or when distinct procedural services are provided that don't fall under the bundling restrictions. The modifier usage must be supported by clear documentation in the medical record that demonstrates the services were truly separate and distinct from the bundled procedure.

Rates shown are from the 2026 Medicare Physician Fee Schedule and CMS IPPS. BillRazor compares your bill against these data sources. See how it works →

Data source: CMS National Correct Coding Initiative (NCCI) Procedure-to-Procedure (PTP) edits, updated quarterly. These code pairs are maintained by CMS to prevent improper billing of services that should be billed as a single procedure.

What this means: When two codes are listed as an NCCI edit pair, billing them separately on the same date of service is typically incorrect. "Never bill together" means no modifier can override the rule. "May bill with modifier" means the codes can be billed separately with appropriate documentation.