Generic J1631 · Psychiatric

HALOPERIDOL DEC 100 MG/ML VIAL

HALOPERIDOL DEC 100 MG/ML VIAL, a generic psychiatric medication, has an acquisition cost of $20.20, though hospitals typically charge patients several times this amount.

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

Data from CMS files published FY 2024 CMS IPPS. Refreshed weekly.

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.

NADAC acquisition cost data

CMS drug pricing benchmarks

Updated 2026-04-03

Drug acquisition cost — HALOPERIDOL DEC 100 MG/ML VIAL

Hospital charges for this drug vary — typically 3–8x the acquisition cost. No observed hospital charge data is available for this specific drug.

$20.20

NADAC acquisition cost

INJECTABLE

Dosage form

INJECTION

Route

Haloperidol decanoate is a long-acting injectable antipsychotic medication used for maintenance treatment of schizophrenia and other psychotic disorders. This formulation typically requires prior authorization from insurers and may have different reimbursement rates compared to oral haloperidol formulations.

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

Common billing errors — Psychiatric charges

Psychiatric drug billing frequently shows charges above the benchmark of $1.67 average NADAC cost, with markups ranging from 200-800% common across hospital systems. Duplicate billing occurs when patients receive both brand-name and generic versions of the same medication class, particularly with antidepressants like sertraline/Zoloft or antipsychotics such as quetiapine/Seroquel, creating potential differences of $50-200 per duplicate entry. Generic substitution errors appear when hospitals bill for brand-name psychiatric medications while dispensing generics, especially problematic with mood stabilizers and anxiety medications where the cost differential can exceed $100 per dose. Prior authorization requirements for newer psychiatric drugs sometimes result in billing for rejected medications that were never properly dispensed, and therapeutic duplications within the same drug class—such as multiple SSRIs or benzodiazepines—frequently appear on itemized statements without clear clinical justification, representing significant potential differences when compared to standard treatment protocols.

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 →

FAQ — Psychiatric billing

What is the average acquisition cost for psychiatric drugs?

The average NADAC (National Average Drug Acquisition Cost) for psychiatric medications is $1.67. This benchmark represents the national average price that pharmacies pay to acquire these medications from wholesalers or manufacturers.

How many psychiatric drugs are included in the NADAC pricing database?

There are 65 psychiatric drugs currently included in this drug class within the NADAC database. This represents a substantial portion of commonly prescribed psychiatric medications used in clinical practice.

How can I identify charges above the benchmark for psychiatric medications?

Compare your actual drug acquisition costs against the $1.67 NADAC average for psychiatric medications. Any charges exceeding this benchmark indicate a potential difference that may warrant review of your procurement or billing processes.

What billing considerations apply when reviewing psychiatric drug costs?

Focus on comparing your facility's acquisition costs against the NADAC benchmark of $1.67 for this drug class. Document any potential differences between your costs and the national average for appropriate billing reconciliation and procurement analysis.

Related pricing data

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Data source: National Average Drug Acquisition Cost (NADAC) survey, published by CMS. HCPCS drug pricing codes from Medicare Part B Drug Average Sales Price file.

What NADAC means: The average price pharmacies pay to acquire this drug from wholesalers. Hospital charges for the same drug are typically higher due to facility fees, compounding, and administration costs.

Limitations: NADAC reflects pharmacy acquisition cost, not patient out-of-pocket cost. Insurance copays, formulary tiers, and manufacturer rebates affect what patients actually pay.