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Double-Charge Detector 0093U

Rx mntr 65 com drugs urine — 113 bundling rules

If your bill lists 0093U alongside any of these codes as separate charges, it may be an unbundling error.

By David Park , Healthcare Cost Researcher · ·
About the analyst

David Park researches procedure pricing and insurance reimbursement patterns at BillRazor Research. He specializes in cost comparison across care settings and metropolitan areas. Expertise: procedure pricing, insurance reimbursement, cost comparison.

NCCI edit data
113 code pairs
Updated 2026-04-03
Bundling rules — 0093U
NCCI edits: these codes have billing restrictions when billed with 0093U
0093U0110URx mntr 1+oral onc rx&sbstsNever bill together0116URx mntr nzm ia 35+oral fluNever bill together80150Assay of amikacinNever bill together80155Drug assay caffeineNever bill together80156Assay carbamazepine totalNever bill together80157Assay carbamazepine freeNever bill together80158Drug assay cyclosporineNever bill together80159Drug assay clozapineNever bill together
Research suggests 49–80% of hospital bills contain errors. Our system checks every line item against Medicare benchmarks.

Common unbundling errors — medical 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 0093U

113 code pairs that have billing restrictions with this procedure.

104
Never bill together
9
May bill with modifier
Code Description Rule
0110U Rx mntr 1+oral onc rx&sbsts Never bill together
0116U Rx mntr nzm ia 35+oral flu Never bill together
80150 Assay of amikacin Never bill together
80155 Drug assay caffeine Never bill together
80156 Assay carbamazepine total Never bill together
80157 Assay carbamazepine free Never bill together
80158 Drug assay cyclosporine Never bill together
80159 Drug assay clozapine Never bill together
80162 Assay of digoxin total Never bill together
80163 Assay of digoxin free Never bill together
80164 Assay dipropylacetic acd tot Never bill together
80165 Dipropylacetic acid free Never bill together
80168 Assay of ethosuximide Never bill together
80169 Drug assay everolimus Never bill together
80170 Assay of gentamicin Never bill together
80171 Drug screen quant gabapentin Never bill together
80173 Assay of haloperidol Never bill together
80175 Drug screen quan lamotrigine Never bill together
80176 Assay of lidocaine Never bill together
80177 Drug scrn quan levetiracetam Never bill together
80178 Assay of lithium Never bill together
80180 Drug scrn quan mycophenolate Never bill together
80183 Drug scrn quant oxcarbazepin Never bill together
80184 Assay of phenobarbital Never bill together
80185 Assay of phenytoin total Never bill together
80186 Assay of phenytoin free Never bill together
80188 Assay of primidone Never bill together
80190 Assay of procainamide Never bill together
80192 Assay of procainamide Never bill together
80194 Assay of quinidine Never bill together
80195 Assay of sirolimus Never bill together
80197 Assay of tacrolimus Never bill together
80198 Assay of theophylline Never bill together
80199 Drug screen quant tiagabine Never bill together
80200 Assay of tobramycin Never bill together
80201 Assay of topiramate Never bill together
80202 Assay of vancomycin Never bill together
80203 Drug screen quant zonisamide Never bill together
80220 Drug asy hydroxychloroquine Never bill together
80305 Drug test prsmv dir opt obs May bill with modifier
80306 Drug test prsmv instrmnt May bill with modifier
80307 Drug test prsmv chem anlyzr May bill with modifier
80320 Drug screen quantalcohols Never bill together
80321 Alcohols biomarkers 1or 2 Never bill together
80322 Alcohols biomarkers 3/more Never bill together
80323 Alkaloids nos Never bill together
80324 Drug screen amphetamines 1/2 Never bill together
80325 Amphetamines 3or 4 Never bill together
80326 Amphetamines 5 or more Never bill together
80327 Anabolic steroid 1 or 2 Never bill together

Showing 50 of 113 rules. Show all

FAQ — medical 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.

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