CurrentPremera BluecrossPolicy N/A

Behavioral Health: Residential/Sub-Acute Detoxification (Withdrawal Management, ASAM 3.7-WM)

Defines medical necessity criteria, required interventions, and exclusions for residential and sub-acute substance use detoxification (ASAM 3.7-WM) for Premera Blue Cross members and providers.

Policy Summary

PayerPremera Bluecross

PolicyResidential/Sub-Acute Detoxification (Withdrawal Management, ASAM 3.7-WM)

Policy CodePolicy N/A

Change TypeClarifications and additions to admission, documentation, exclusions, and secondary review thresholds

Effective DateJun 1, 2026

Next Review DateN/A

Key ActionRefer continued stays beyond 5 days for Secondary Review and ensure substance use evaluation and withdrawal medication are completed during the first day of admission.

SourceLink

POLICY UPDATE CHANGES

Clarified that licensed psychologists can function as the attending clinician in states in which that is within their scope of licensure.

Secondary Review threshold changed from stays that exceed 7 days to stays that exceed 5 days.

Allowed physician, NP, or PA evaluations to be done in-person or by telehealth.

Changed timeframe for substance use evaluations to during the first day of admission and required medication to manage or prevent withdrawal symptoms to be started during the first day of admission.

Added exclusions for hot baths, hot tubs, and Jacuzzis without active medical management and for oral or parenteral vitamin/mineral/amino acid or other supplement support without active medical management.

For continued stay, allowed mild withdrawal signs and symptoms from alcohol or benzodiazepine withdrawal but clarified requirement that some withdrawal signs/symptoms must be present if within 96 hours since last use.

Physical examination is required within one day after admission (wording changed from 'appropriate physical examination').

Added that non-compliance with treatment or discharge planning (including not taking prescribed medications, concealing medications, bringing or using contraband substances) can make continued residential detoxification not medically necessary, with allowance for one additional opportunity after a first infraction in some circumstances.

Added 'time in a sweat lodge' as alternative terminology for sauna detoxification.

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ASAM 3.7-WMLevel of care equivalent

24/7Nursing observation requirement

DailyAttending clinician evaluation frequency

<=1 dayAdmission eval timeframe

5 daysSecondary review threshold

first dayMedication & evaluation start

Coverage and Medical Necessity Criteria

inv-01: Initial admission criteria

Residential and sub-acute detoxification is considered medically necessary when ALL of the following are met:

Substance disorder severity: Substance Use Disorder, moderate or severe, other than for tobacco/nicotine, not in remission

Withdrawal risk: The substance(s) in use have withdrawal syndromes that can be moderate, severe, potentially life-threatening, can cause serious physical harm, or can be so physically intolerable that 24/7 containment with active medical management is needed (does not include simple/less severe discomfort)

Evidence of current or imminent severe withdrawal: At least one of the following indicators of current or imminent moderate, severe, potentially life‑threatening, or physically severely intolerable withdrawal is present: current signs/symptoms; signs indicating imminent severe withdrawal; recent/frequent use pattern making severe withdrawal highly likely; prior similar severe withdrawal; or current signs of physically severely intolerable withdrawaln>=1

See full list in source

inv-02: Continued stay criteria

Continued residential and sub-acute detoxification may be considered medically necessary when ANY of the following are present:

Ongoing significant withdrawal: Continued signs or symptoms of moderate, severe, or potentially life‑threatening withdrawal, or signs indicating such withdrawal is likely without ongoing active medical management

Ongoing physically intolerable withdrawal: Continued signs or symptoms of physically severely intolerable withdrawal, or signs indicating such withdrawal is likely without ongoing active medical management

Short mild symptoms for alcohol/benzodiazepines: Mild or no withdrawal signs and symptoms for a maximum of one full day (then discharge if no recurrence) OR mild withdrawal signs and symptoms from alcohol or benzodiazepines with active medical management and less than 96 hours (4 days) since last reported use96 hours

Onset of delirium tremens can occur up to 96 hours after last use; if time of last use is undocumented, 4 days is used as approximation

inv-03: Intervention and monitoring criteria

All of the following MUST be present during the stay:

Attending clinician evaluations: A physician, nurse practitioner, or physician assistant must conduct an admission evaluation including medical history, documentation of withdrawal signs and symptoms, and physical examination within one day after admission, and must evaluate the patient at least once every day thereafter; evaluations may be in-person or by telehealth

Licensed psychologists may function as the attending clinician in states where within scope of licensure

Substance use evaluation and medication initiation: Substance use evaluation must be completed during the first day of admission, and medication to manage or prevent withdrawal symptoms must be started during the first day of admissiontime-based

Medication may be discontinued as specified when symptoms are mild/absent

Active medical management components: Active medical management must continue throughout the stay and includes daily use of medication(s) to treat or prevent withdrawal when indicated, daily evaluation of medication effects with dose adjustments as needed, appropriate daily physical examinations, vital signs as indicated, and laboratory testing when indicated

inv-04: Admission and Continued Stay Criteria (summary)

Policy includes requirements for admission and continued stay when active medical management of withdrawal is present and specified timing/assessment criteria are met.

Admission/Initial Interventions: Substance use evaluation during the first day of admission; physical examination within one day after admission; medication to manage or prevent withdrawal symptoms must be started during the first day of admissiontime-based

From history updates specifying timing requirements

Continued Stay Considerations: Continued stay may be allowed when withdrawal signs/symptoms persist; for alcohol or benzodiazepine withdrawal, at least some withdrawal signs/symptoms must be present and be less than 96 hours since last use to meet certain continued stay options96 hours

'or no' was deleted to require at least some symptoms

Excluded without active medical management:

Services provided in settings that are not licensed residential or sub-acute treatment facilities are excluded from consideration as medically necessary residential or sub-acute detoxification. Examples of settings that do not meet the policy’s residential/sub-acute care standard include: halfway houses and other sober living residences, wilderness/adventure or camping programs, boarding or therapeutic schools, boot camps, military schools or academies, group homes, therapeutic homes, and supported or alternative housing. The policy requires that care be delivered in an appropriate residential or sub-acute treatment facility (for example, a stand-alone SUD residential facility, a psychiatric residential treatment facility, a residential unit in a general hospital, or a stand-alone detox facility licensed at the appropriate level) in order to meet medical necessity.

Modalities that rely solely on non‑medical interventions are explicitly excluded unless they are delivered as part of active medical management. Excluded approaches include sauna or “time in a sweat lodge,” the use of hot baths, hot tubs, or Jacuzzis without active medical management, herbal or ‘herbal detox’ programs, exercise‑focused programs as the primary detox modality, and programs that use oral or parenteral vitamin/mineral/amino acid or other supplement support without active medical management.

Residential and sub-acute detoxification that consists only of hydration and/or nutrition, or other non‑medical support without the components of active medical management, is not medically necessary. Programs that provide only hydration/nutrition or supplement‑only approaches (oral or parenteral vitamins, minerals, amino acids, or other supplements) without daily medical evaluation and medication management should be denied as they do not meet the policy’s requirement for active medical management.

Admission or continued stay for observation alone, often called 'social detoxification', is not medically necessary when no active medical management is provided. Similarly, admissions driven solely by programmatic requirements (for example, pre‑admission detox requirements imposed by a residential program), ultra‑rapid or anesthesia‑assisted detox, or stays intended only for short‑term observation of intoxication (which may be managed in an observation bed) do not meet medical necessity criteria and should be denied.

Continued stay is not medically necessary when it exists solely because of patient or family non‑compliance with treatment or discharge planning. Examples of non‑compliance include refusing or avoiding prescribed withdrawal medications (including hiding or ‘cheeking’ medications), bringing or using contraband substances (alcohol or drugs) during detoxification, or failing to participate in required discharge planning. The policy allows that, in some circumstances, one additional opportunity for continued treatment may be considered after a first infraction, but ongoing non‑compliance is a basis for denial of continued residential detoxification.

Level of Care — ASAM 3.7-WM Residential / Sub-acute

inv-25: Residential / Sub-acute (ASAM 3.7-WM)

Admission: See Initial admission criteria set: Substance Use Disorder (moderate/severe, non-tobacco), withdrawal risk from substances used, and at least one indicator of current or imminent significant withdrawal

Continued stay: See Continued stay criteria set: ongoing significant withdrawal, physically intolerable withdrawal, or specified short/mild-symptom rules for alcohol/benzodiazepines96 hours for alcohol/benzodiazepines

inv-26: Residential / Sub-acute detoxification

Admission: Substance use evaluation during first day; physical exam within one day; start medication to manage/prevent withdrawal during first day

Permitted and Excluded Treatment Modalities

inv-27: Medication-Assisted Withdrawal Management

Medication management: Daily medication to treat or prevent withdrawal when indicated with daily evaluation and dose adjustments as needed is required as part of active medical management; medication must be started during the first day of admission

inv-28: Detox modalities (medication-assisted withdrawal management vs non-medical detox)

Active medical management required: Active medical management (daily medication, daily evaluation, appropriate daily physical exams, vital signs, and labs when indicated) is required; modalities such as sauna/sweat lodge, hot baths/hot tubs/Jacuzzis, hydration/nutrition-only, or oral/parenteral supplements without active medical management are excluded

Exclusions and requirement for active management added/clarified in history

Coding and Relevant Timeframes

Codingmixed

No codes listed

Withdrawal timeframe — continued stay

Withdrawal timeframeLess than 96 hours (4 days) since last reported use for alcohol or benzodiazepine withdrawal to meet certain continued-stay options; some withdrawal signs/symptoms must be present within this timeframe

Approximation when time not documentedIf time of last use is not documented, 4 days is used as the closest approximation to determine eligibility for the 96-hour rule

Relevance to continued stayThis 96-hour timeframe applies specifically to continued residential/sub-acute detoxification options for alcohol or benzodiazepine withdrawal

Provider Responsibilities, Documentation, and Review Triggers

Documentation Required

Admission/Review and Evaluation Requirements

Admission and daily review requirements: A physician, nurse practitioner, or physician assistant must perform an admission evaluation including medical history, documentation of withdrawal signs and symptoms, and a physical examination within one day after admission. The attending clinician must subsequently evaluate the patient at least once every day (in-person or via telehealth) to assess medical status, withdrawal signs and symptoms, medication regimen, and other ongoing treatment needs. A substance use evaluation must be completed during the first day of admission and medication to manage or prevent withdrawal symptoms must be initiated during the first day of admission. Nursing staff observation must be provided 24/7 and discharge planning must begin within one day after admission.

Admission evaluation by MD/NP/PA within one day that documents medical history, withdrawal signs/symptoms, and physical exam
Daily clinician evaluation (physician/NP/PA) in-person or by telehealth assessing withdrawal, medications, and medical status
Substance use evaluation completed during first day of admission
Initiate medication to manage/prevent withdrawal during first day of admission
Nursing observation provided 24/7
Discharge planning started within one day after admission

Definitions and Terms

Active medical management (definition)

DefinitionActive medical management means daily use of medication(s) to treat or prevent withdrawal symptoms

Daily evaluationEvaluation of the effects of such medication(s) at least once daily with dose adjustments or medication changes when indicated

Daily physical exam and monitoringPhysical examination components as appropriate at least once daily, vital signs when indicated, and laboratory testing when indicated

Does not include observation-onlyObservation for possible withdrawal without these components ('social detoxification') does not constitute active medical management

Sauna detoxification

Alternative termSauna detoxification is also referred to as 'time in a sweat lodge'

Visit Limits and Review

Continued residential/sub-acute detoxification — Secondary Review

Secondary review triggerContinued residential/sub-acute detoxification stays beyond 5 days should be referred for Secondary Review

Attending clinician optionsAttending evaluations may be performed by a physician, nurse practitioner, or physician assistant; licensed psychologists may serve as attending clinicians where permitted by state scope of practice

Telehealth allowanceAttending evaluations may be performed in-person or by telehealth as noted in review requirements

Background and Scope

Detoxification is the physiologic process of the body eliminating drugs or alcohol; acute withdrawal can be uncomfortable and, depending on the substance and severity, may be severe or life‑threatening. When withdrawal presents with moderate, severe, potentially life‑threatening, or physically severely intolerable signs or when risk of such withdrawal is high, care in a residential or sub‑acute setting with active medical management (ASAM Level 3.7‑WM) may be required to provide 24/7 containment, monitoring, and medical intervention.

Policy Summary

PayerPremera Bluecross

PolicyResidential/Sub-Acute Detoxification (Withdrawal Management, ASAM 3.7-WM)

Policy CodePolicy N/A

Change TypeClarifications and additions to admission, documentation, exclusions, and secondary review thresholds

Effective DateJun 1, 2026

Next Review DateN/A

Key ActionRefer continued stays beyond 5 days for Secondary Review and ensure substance use evaluation and withdrawal medication are completed during the first day of admission.

SourceLink

On This Page

Observation-only ('social detox') does not qualify as active medical management

Nursing and discharge planning: Nursing staff observation must be provided 24/7 and discharge planning must start within one day after admission

Detox that consists only of hydration and/or nutrition, hot baths/hot tubs/Jacuzzis, oral or parenteral vitamins/minerals/amino acids/other supplements without active medical management are not medically necessary

Exclusions added/clarified in history

From document history updates

Continued stay: Presence of withdrawal signs/symptoms (for alcohol/benzodiazepines at least some symptoms present and within 96 hours since last use) or other clinical indications per policy96 hours for alcohol/benzodiazepines

Document history clarifications

Documentation Required

Required documentation at admission and daily

Required documentation at admission and daily: Document the admission evaluation (medical history, withdrawal signs/symptoms, physical exam) and the substance use evaluation completed during the first day. Record the medication(s) started for management or prevention of withdrawal and daily assessments of medication effectiveness, including any dose adjustments or medication changes. Document daily physical examination findings and vital signs as indicated, laboratory testing when appropriate, nursing observations, and progress of discharge planning. If medications for withdrawal are discontinued prior to discharge, document the clinical rationale and planned discharge timing as specified in criteria.

Admission note with history, withdrawal signs/symptoms, physical exam within one day
Substance use evaluation during first day
Medication start and daily medication-effectiveness assessments with dose adjustments when indicated
Daily physical exam and vital signs when indicated; labs as appropriate
Daily nursing observation records (24/7)
Documentation of discharge planning initiated within one day
If withdrawal medications discontinued: documentation that symptoms are mild/resolved and discharge planned within one day, or documentation supporting discontinuation to confirm medication no longer needed

Documentation Required

Required clinical documentation and timing

Required clinical documentation and timing expectations: Physical examination by the attending clinician within one day after admission; substance use evaluation and initiation of withdrawal medications during the first day of admission; ongoing documentation that active medical management continues throughout the stay (daily medication use to treat/prevent withdrawal, daily evaluation of medication effects, daily physical exam components and vital signs when indicated, and laboratory testing as appropriate). Continued stays beyond five days should be referred for Secondary Review.

Physical examination within one day after admission
Substance use evaluation and start of withdrawal medication during first day of admission
Daily documentation that active medical management is provided (medication use, effect assessment, exam/vitals, labs as indicated)
Refer continued stays beyond 5 days for Secondary Review

Documentation Required

Active medical management requirement

Active medical management requirement: Active medical management must include daily use of medication(s) to treat or prevent withdrawal symptoms, daily evaluation of medication effectiveness with dose adjustments or changes when indicated, daily physical examination components as appropriate for the withdrawal syndrome, vital signs when indicated, and laboratory testing when indicated. Observation without these components does not meet active medical management.

Daily use of medication(s) to treat/prevent withdrawal
Daily evaluation of medication effects and dose adjustments when indicated
Daily physical exam components as appropriate; vital signs when indicated
Laboratory testing as appropriate for the withdrawal syndrome
Observation for possible withdrawal without the above (social detox) does not constitute active medical management

Denial Risk

Common denial triggers and excluded modalities

Denial risk triggers and exclusions to monitor: Admissions or continued stays may be denied when the admission is for programmatic requirements (pre-admission detox prior to residential treatment), when the patient is observed for possible withdrawal without active medical management (social detoxification), when detox consists only of hydration/nutrition or use of baths/saunas/hot tubs/Jacuzzis/herbal or supplement-only programs without active medical management, when ultra-rapid/anesthesia-assisted detox is used, or when continued stay is due to patient or family non-compliance (including refusal to take prescribed withdrawal medications or bringing/using contraband substances). A court order alone does not make the stay medically necessary.

Programmatic pre-admission detox admissions are not medically necessary
Observation without active medical management (social detox) is not medically necessary
Detox via hot baths/saunas/Jacuzzis, sweat lodge, herbal regimens, or supplements without active medical management are not medically necessary
Hydration/nutrition alone without active medical management is not medically necessary
Ultra-rapid/anesthesia-assisted detoxification is not medically necessary
Continued stay due to patient/family non-compliance (including medication refusal, cheeking, bringing contraband) may be denied; limited exceptions may allow one additional opportunity after a first infraction
Court orders do not by themselves justify medical necessity

Exclusion contextUse of sauna/sweat lodge without active medical management is explicitly excluded from medically necessary residential/sub-acute detoxification

Policy history note'Time in a sweat lodge' was added as alternative terminology in a 2024 history update