Medical Detox Cost: By Substance, What's Included, and Insurance Coverage

Medical detox costs $1,500 to $12,000+ depending on substance and duration. Alcohol and opioid detox run $1,750 to $8,000 for 5–10 days. Benzodiazepine detox is the most expensive at $3,500 to $12,000+ due to 10–14 days of medically supervised tapering. Insurance typically covers 60–80% after deductible, capped by your 2026 out-of-pocket maximum of $7,000–$9,500.

Substance	Duration	Without Insurance	With PPO	With Medicaid
Alcohol	5–7 days	$1,750 – $5,600	$1,050 – $4,200	$0 – $50
Opioids (heroin, pills)	5–7 days	$2,000 – $6,500	$1,200 – $4,900	$0 – $50
Fentanyl	7–10 days	$2,500 – $8,000	$1,750 – $6,400	$0 – $75
Benzodiazepines	10–14+ days	$3,500 – $12,000+	$2,500 – $9,100+	$0 – $100
Cocaine	3–7 days	$1,200 – $3,500	$600 – $2,450	$0 – $30
Methamphetamine	5–10 days	$1,500 – $5,500	$1,000 – $4,500	$0 – $50
Marijuana	3–7 days	$800 – $2,500	$450 – $1,925	$0 – $30

Per-day rates run $250–$850 at freestanding detox facilities and $1,000–$3,000+ at hospital-based units. This guide answers the four most searched questions — what’s included, is Medicaid (including Medi-Cal) accepted, is hospital detox covered, and what does it actually cost — and adds the 2025 buprenorphine microdosing protocol for fentanyl.

What Medical Detox Includes

Every accredited medical detox program delivers the following services as part of the per-day rate. Understanding what’s inside the cost helps you evaluate facility quotes and avoid unnecessary add-ons.

Clinical Services (Included)

• 24/7 nursing care. Round-the-clock RN and LPN staffing.
• Daily physician rounds. Addiction medicine physician assesses progress and adjusts medications.
• Vital sign monitoring. Blood pressure, heart rate, temperature, respiratory rate every 4 hours during acute phase.
• Validated withdrawal assessment. Structured scales administered on a schedule:
  • CIWA-Ar (Clinical Institute Withdrawal Assessment for Alcohol, Revised)
  • COWS (Clinical Opiate Withdrawal Scale) for opioids
  • CIWA-B for benzodiazepines
• Medication administration. Symptom-triggered protocols based on assessment scores.
• Psychiatric consultation. For patients with co-occurring depression, suicidal ideation, or psychosis.
• Clinical assessment. Comprehensive intake, ASAM level of care determination, and treatment plan.
• Discharge planning and warm handoff to inpatient, PHP, IOP, or outpatient MAT.

Medications Typically Included

• For alcohol: Benzodiazepines (lorazepam/Ativan or chlordiazepoxide/Librium), thiamine, folate, multivitamin, IV fluids, magnesium, anti-nausea medication.
• For opioids: Buprenorphine (Suboxone) or methadone for induction, clonidine for autonomic symptoms, loperamide for diarrhea, ondansetron for nausea, NSAIDs for muscle aches, sleep aids.
• For benzodiazepines: Long-acting benzodiazepine substitution (diazepam/Valium) with gradual taper, anticonvulsants in some protocols, non-benzodiazepine anxiolytics for residual symptoms.
• For stimulants: Supportive care, sleep aids, antipsychotics if psychosis develops, mood stabilizers for severe depression.

Support Services (Included)

• Private or semi-private room
• Three meals daily with nutritional adjustments as needed
• Hydration monitoring
• Case management
• Insurance coordination
• Family communication (with consent)

What’s NOT Typically Included

• Detox is not treatment — ongoing therapy, relapse prevention, and aftercare require separate programs. See types of rehab programs.
• Dental/physical therapy work during detox (billed separately)
• Elective imaging or labs not related to withdrawal
• Prescriptions carried home on discharge (covered under your pharmacy benefit)

Does Medicaid Cover Medical Detox? (Including Medi-Cal)

Yes. Medicaid covers medical detox in every state under the ACA’s essential health benefits and Mental Health Parity enforcement. Coverage mechanics differ by state program.

California: Medi-Cal

Medi-Cal covers medical detox through the Drug Medi-Cal Organized Delivery System (DMC-ODS) waiver, active in most California counties (58 counties participate as of 2026).

Covered under DMC-ODS:

• Inpatient withdrawal management (ASAM level 3.7 and 4) in hospital or freestanding medical detox
• Residential withdrawal management (ASAM 3.2-WM)
• Outpatient withdrawal management (ASAM 1-WM and 2-WM)
• Post-detox residential treatment, PHP, IOP, and outpatient

Cost to member: Typically $0 copay.

Authorization: Provider submits clinical documentation to the county’s managed care plan. Expedited authorization available for acute withdrawal.

Other State Medicaid Programs

State Program Type	Coverage	Typical Copay
Managed Medicaid (Molina, Aetna Better Health, WellCare)	Full detox coverage ACA-compliant	$0
State fee-for-service Medicaid	Full detox coverage	$0–$5
Medicaid expansion states (up to 138% FPL)	Full coverage	$0
Non-expansion states	Coverage for eligible categorical populations	$0–$10

See Molina rehab coverage for the multi-state Medicaid carrier breakdown.

What you need to qualify: Income within state Medicaid limits (138% FPL in expansion states) and residency in the state.

What’s required for authorization: Medical necessity documentation — withdrawal symptoms, substance history, ASAM level determination. Authorization is generally straightforward once a qualifying provider initiates the request.

Is Hospital Detox Covered by Insurance?

Yes — hospital-based detox is covered under your plan’s inpatient hospital benefit, the same benefit that covers any hospital admission.

Hospital Detox vs Freestanding Detox: The Cost and Coverage Difference

Factor	Hospital-Based Detox	Freestanding Detox
Setting	Acute care hospital with addiction medicine unit	Standalone detox or residential facility
ASAM level	4 (medically managed intensive inpatient)	3.7 (medically monitored inpatient)
Daily rate (self-pay)	$1,000 – $3,000+	$250 – $850
Insurance benefit	Inpatient hospital	Inpatient SUD
Prior authorization	Required (except emergency)	Required
When used	Medical complications, cardiac monitoring, psychiatric stabilization, ICU-level risk	Standard uncomplicated withdrawal

When Hospital Detox Is Clinically Required

• Cardiac arrhythmias or severe hypertension during withdrawal
• Seizure history or active seizure risk not managed in freestanding setting
• Acute psychiatric crisis (suicidal ideation, psychosis)
• Medical comorbidities (diabetes, liver failure, pancreatitis)
• Severe dehydration or electrolyte derangement
• ICU-level monitoring required
• Pregnancy with maternal-fetal medicine involvement

Insurance Mechanics

Hospital detox: Covered as inpatient hospital admission. Subject to the hospital deductible and coinsurance. Days apply to any annual hospital-day cap (though parity requires SUD days be treated the same as medical days).

Freestanding detox: Covered as inpatient SUD. Authorization is handled by the plan’s behavioral health division. Days and step-down logic follow ASAM criteria.

Both: Capped by your annual out-of-pocket maximum. Once you hit OOP max, insurance pays 100%.

For full insurance mechanics, see does insurance cover rehab and how to get insurance to cover rehab.

Alcohol Detox

Alcohol is one of two substances (with benzodiazepines) where withdrawal can be fatal. Medical supervision is not optional.

Life-Threatening Complications

• Seizures: 6–48 hours after last drink. Potentially fatal.
• Delirium tremens (DTs): Severe confusion, hallucinations, autonomic instability. Occurs in ~5% of alcohol withdrawal cases. 5–15% mortality if untreated.
• Cardiovascular complications: Dangerous blood pressure and heart rate swings.
• Wernicke-Korsakoff syndrome: Thiamine deficiency causing permanent neurological damage if not prevented.

Withdrawal Timeline

Hours Since Last Drink	Typical Symptoms
6–12	Anxiety, tremors, sweating, nausea, insomnia
12–24	Symptoms intensify; hallucinations may begin
24–48	Peak seizure risk
48–72	Symptoms peak; DTs may develop
Day 5–7	Acute withdrawal resolves
Weeks–months	Post-acute: sleep disturbance, mood changes, cravings

Protocol

• CIWA-Ar-guided benzodiazepine dosing (Ativan or Librium)
• Thiamine 100 mg IV/IM daily before glucose to prevent Wernicke-Korsakoff
• Folate and multivitamin
• IV fluids with electrolytes as needed
• Magnesium repletion
• Anti-nausea medication
• Transition to MAT: naltrexone, acamprosate, or disulfiram after acute phase

Cost

• Self-pay: $250–$800/day × 5–7 days = $1,750–$5,600
• PPO insurance out-of-pocket: $1,050–$4,200
• Medicaid: $0–$50

See alcohol rehab cost for the full treatment continuum.

Opioid Detox (Heroin, Prescription Opioids, Fentanyl)

Opioid withdrawal is not medically dangerous in the way alcohol withdrawal is — you will not die from opioid withdrawal itself. But it is intensely uncomfortable, and the overdose death risk in the first 1–2 weeks after detox is the highest of any point in the substance-use trajectory due to tolerance loss. Medical detox with MAT initiation is the standard of care.

Why Medical Supervision Matters

• Symptom reduction: Buprenorphine or methadone dramatically reduce withdrawal severity
• Completion: Medication-supported detox has completion rates 4–6x higher than non-medicated
• MAT continuity: Detox transitions directly into maintenance MAT, protecting against post-detox overdose
• Medical monitoring: Detects dehydration, electrolyte imbalance, aspiration risk

Withdrawal Timeline

Short-acting opioids (heroin, oxycodone, hydrocodone):

Hours Since Last Use	Typical Symptoms
6–12	Anxiety, sweating, yawning, muscle aches
24–48	Peak — severe muscle aches, nausea, vomiting, diarrhea, dilated pupils, goosebumps
Day 3–5	Physical symptoms improve
Day 5–7	Acute withdrawal resolved
Weeks–months	Post-acute: cravings, insomnia, mood disturbance

Long-acting opioids and fentanyl:

Hours Since Last Use	Typical Symptoms
12–30	Symptoms begin (delayed onset)
Day 3–4	Symptoms peak
Day 7–10	Acute symptoms resolve

Standard Protocol (Non-Fentanyl Opioids)

• COWS-guided assessment every 4 hours
• Buprenorphine induction once COWS ≥ 12 (moderate withdrawal)
• Clonidine for autonomic symptoms
• Loperamide, ondansetron, NSAIDs for symptomatic relief
• Continue buprenorphine maintenance (12–24 months minimum per NIDA)

The 2025 Fentanyl Microdosing Protocol

Traditional COWS-guided buprenorphine induction fails for many fentanyl patients — fentanyl’s high potency and tissue accumulation often cause precipitated withdrawal when buprenorphine is started at standard doses. Since 2024, the standard of care has shifted to low-dose induction (also called Bernese method or microdosing).

How it works:

• Very low buprenorphine doses (starting at 0.5 mg) are administered while the patient is still using or has detectable fentanyl on board
• Dose titrated up over 5–7 days (e.g., 0.5 → 1 → 2 → 4 → 8 → 16 mg)
• Avoids the COWS threshold entirely — no waiting for full withdrawal
• Fentanyl use tapered and discontinued during the titration

This is a significant shift from the COWS-threshold approach that dominated pre-2024. Patients seeking fentanyl detox should ask specifically whether a facility uses microdosing or traditional induction. See fentanyl rehab cost for full fentanyl-specific treatment detail.

Cost

• Standard opioids self-pay: $2,000–$6,500 (5–7 days)
• Fentanyl self-pay: $2,500–$8,000 (7–10 days; longer if microdosing protocol used)
• PPO out-of-pocket: $1,200–$6,400
• Medicaid: $0–$75

See opioid rehab cost and heroin rehab cost for substance-specific detail.

Benzodiazepine Detox

Benzo detox is the longest and most expensive because safe withdrawal requires gradual tapering over 10–14+ days. Like alcohol, benzo withdrawal can be fatal.

Why Benzo Detox Is Dangerous

• Life-threatening seizures from abrupt cessation after prolonged use
• Delirium and severe autonomic instability
• Protracted withdrawal — symptoms can persist for months
• Never attempt home benzo detox — fatal outcomes documented

Withdrawal Timeline

Short-acting (Xanax, Ativan):

• Onset: 1–2 days after last dose
• Peak: 2–4 days
• Acute phase: 10–14 days

Long-acting (Klonopin, Valium):

• Onset: 2–7 days
• Peak: 2 weeks
• Acute phase: weeks

Protracted withdrawal: Anxiety, insomnia, sensory hypersensitivity — weeks to months.

Protocol

• Short-acting benzo converted to long-acting (diazepam) for smoother taper
• 5–10% dose reduction every 1–2 weeks (faster in structured inpatient settings, slower for outpatient)
• 24/7 monitoring during acute phase
• Seizure precautions
• Non-benzo anxiolytics for residual symptoms (hydroxyzine, gabapentin, trazodone)

Cost

• Self-pay: $350–$850/day × 10–14 days = $3,500–$12,000+
• PPO out-of-pocket: $2,500–$9,100+
• Medicaid: $0–$100

See benzo rehab cost for the full treatment pathway.

Stimulant Detox (Cocaine, Methamphetamine)

Stimulant withdrawal is not medically dangerous — there is no fatality risk from cocaine or meth withdrawal itself. But psychological symptoms can be severe, including suicide risk and psychosis (particularly for meth).

Symptoms

Physical: Extreme fatigue, increased appetite, slowed movement.

Psychological (primary risk): Profound depression, anhedonia, intense cravings, anxiety, paranoia, possible psychosis (especially with meth).

Cocaine Detox

• Duration: 3–7 days acute phase
• Protocol: Symptom management, nutritional support, psychiatric monitoring, sleep support
• No FDA-approved MAT medications — research ongoing
• Self-pay cost: $1,200–$3,500

See cocaine rehab cost.

Methamphetamine Detox

• Duration: 5–10 days acute phase
• Protocol: Extended monitoring, psychiatric evaluation (psychosis may require antipsychotics), nutritional rehabilitation, sleep normalization
• Self-pay cost: $1,500–$5,500

See meth rehab cost.

Cannabis Detox

Cannabis withdrawal is the mildest of any substance. Medical detox is optional but improves comfort and completion.

Symptoms: Sleep difficulty, appetite change, irritability, anxiety, depression, cravings.

Timeline:

• Days 1–2: Symptoms begin
• Days 2–6: Symptoms peak
• Days 7–14: Gradual improvement
• Weeks 2–4: Sleep and mood normalize

Cost: $800–$2,500 self-pay (3–7 days).

See marijuana rehab cost.

Complicated Detox: When the Bill Goes Higher

Standard per-day rates cover uncomplicated withdrawal. The bill increases significantly when the patient requires more intensive care. This is missing from most detox cost guides.

Complication	Typical Added Cost per Day
Cardiac telemetry monitoring	+$400 – $1,200
ICU-level care	+$1,500 – $5,000
Psychiatric consultation + 1:1 sitter	+$500 – $1,500
Maternal-fetal medicine (pregnancy)	+$300 – $1,000
Infectious disease consult (endocarditis, hepatitis workup)	+$200 – $600
Specialty imaging (MRI, echo)	$500 – $3,000 one-time
Ventilator / advanced airway	+$3,000 – $8,000

These add-ons are covered by insurance the same way any complicated hospital admission is covered — subject to your deductible and coinsurance, capped at your OOP max. For uninsured patients, complicated detox is where the self-pay bill can balloon quickly.

Detox Medication Line-Item Cost

Most cost guides quote a per-day rate without showing what’s inside it. Approximate course costs for medications commonly included in a 5–10 day detox:

Medication	Typical Course Cost
Buprenorphine induction course	$300 – $800
Methadone (OTP) course	$400 – $1,000
Lorazepam (Ativan) course	$100 – $400
Chlordiazepoxide (Librium) course	$80 – $300
Diazepam taper (benzo detox)	$200 – $600 over 10–14 days
Clonidine course	$20 – $60
Thiamine IV/IM + multivitamin	$30 – $100
IV fluids and electrolytes	$50 – $150 per day
Ondansetron (Zofran)	$20 – $80
Loperamide	$10 – $30

These are bundled into the per-day rate at most facilities. Ask admissions whether the per-day rate is “all-inclusive” or “plus medications” before admission.

Detox Is Not Treatment

This is the most important distinction in addiction care.

• Detox = medically supervised withdrawal management (3–14 days). Stabilizes the body.
• Treatment = behavioral therapy, MAT, relapse prevention, recovery skills (30–90+ days).

Detox alone has greater than 90% relapse rate within days to weeks because detox addresses physical dependence, not the underlying substance use disorder. The overdose-death risk window during and immediately after detox is the highest of any period in recovery due to tolerance loss.

Best-practice sequence: Detox → residential → PHP → IOP → standard outpatient → MAT maintenance (12–24+ months per NIDA). See types of rehab programs for the full continuum.

Why Home Detox Is Dangerous

Many people consider home detox to save money. It is dangerous and nearly always fails.

Fatal risks:

• Alcohol home detox: seizures, DTs, 5–15% mortality risk
• Benzodiazepine home detox: seizures, protracted withdrawal
• Fentanyl home detox: extreme symptoms + post-detox tolerance loss = peak overdose risk

For all substances:

• No medical monitoring of complications
• No medications to reduce symptoms
• Severe discomfort → early relapse
• No MAT initiation
• No transition to ongoing treatment

The financial argument does not hold. Insurance covers medical detox under ACA essential health benefits. If you have any coverage, there is no financial reason to attempt home detox. Even for the uninsured, most facilities offer sliding-scale fees, scholarship funds, and payment plans.

Finding the Right Detox Facility

Verify Coverage Before Admission

1. Call the behavioral health number on your insurance card
2. Ask whether the facility is in-network
3. Confirm detox is covered (typically at inpatient SUD or inpatient hospital benefit)
4. Get the expected out-of-pocket amount
5. Confirm prior authorization status or emergency coverage pathway
6. Most facilities offer free benefits verification — use it

Questions to Ask the Facility

• Is the per-day rate all-inclusive or plus medications/labs?
• What withdrawal assessment protocol do you use (CIWA, COWS)?
• For fentanyl: do you use microdosing induction or traditional COWS-threshold induction?
• What’s the average length of stay for my substance?
• Do you have in-house psychiatric consultation?
• What’s the warm-handoff plan to ongoing treatment?

For uninsured patients, see rehab cost without insurance. For coverage verification mechanics, see does insurance cover rehab.

Sources

• American Society of Addiction Medicine. “The ASAM Clinical Practice Guideline on Alcohol Withdrawal Management.” 2020. https://www.asam.org/quality-care/clinical-guidelines
• American Society of Addiction Medicine. “The ASAM National Practice Guideline for the Treatment of Opioid Use Disorder.” 2020 update. https://www.asam.org/quality-care/clinical-guidelines/national-practice-guideline
• National Institute on Drug Abuse. “Principles of Drug Addiction Treatment: A Research-Based Guide.” 2024. https://nida.nih.gov/publications/principles-drug-addiction-treatment-research-based-guide-third-edition
• Substance Abuse and Mental Health Services Administration. “TIP 63: Medications for Opioid Use Disorder.” 2021 update. https://store.samhsa.gov/
• California Department of Health Care Services. “Drug Medi-Cal Organized Delivery System (DMC-ODS).” 2024. https://www.dhcs.ca.gov/provgovpart/Pages/Drug-Medi-Cal-Organized-Delivery-System.aspx
• Centers for Medicare & Medicaid Services. “SUD Benefits and Services.” 2024. https://www.cms.gov/
• Randhawa PA, et al. “Buprenorphine Low-Dose Induction.” Journal of Addiction Medicine. 2024.
• Centers for Disease Control and Prevention. “Opioid Overdose Prevention.” 2024. https://www.cdc.gov/overdose-prevention/