ModifiedUnitedHealthcarePolicy CS098NJ.AA

Sleep Studies (for New Jersey Only)

This policy governs medical necessity and coverage criteria for in-lab attended polysomnography and home sleep apnea testing (HSAT) for evaluating sleep disorders for members in New Jersey.

Policy Summary

PayerUnitedHealthcare

PolicySleep Studies (for New Jersey Only)

Policy CodePolicy CS098NJ.AA

Change TypeCriteria revision and clarifications

Effective DateMar 1, 2026

Next Review DateN/A

Key ActionAfter a single negative, inconclusive, or technically inadequate HSAT, obtain attended full-channel polysomnography rather than repeating HSAT.

SourceLink

POLICY UPDATE CHANGES

Noted that performing a repeat HSAT is not recommended when an initial test is negative, inconclusive, or technically inadequate; after a single such HSAT result, attended full-channel polysomnography is strongly recommended.

Revised coverage criteria for attended full-channel polysomnography for suspected OSA to require prior HSAT within the past 12 months when prior HSAT results are negative, indeterminate, or technically inadequate.

Updated MSLT medical necessity wording to specify MSLT is medically necessary for evaluating suspected narcolepsy when other causes of excessive sleepiness have been excluded.

Added that repeat attended PSG and repeat PAP titration are medically necessary for individuals with persistent or new symptoms despite appropriate treatment and for those with clinically significant weight change (≥10%) or changes in cardiovascular disease since last study.

1state-specific application (New Jersey)

>=4hminimum adequate HSAT monitoring time

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<60FEV1 % predicted threshold

>=10%weight change threshold prompting repeat testing

12 monthstime window for prior HSAT relevant to PSG

Coverage Criteria and Medical Necessity

Medical necessity criteria

Covered when criteria below are met

HSAT indication: HSAT using a portable monitor is medically necessary for evaluating adults with suspected OSA; APAP may be used to determine a fixed PAP pressure.adult

Do not repeat HSAT if initial test is negative/inconclusive/technically inadequate; instead perform attended polysomnography

Attended polysomnography indications: Attended full-channel polysomnography is medically necessary when ANY of the following are present: (1) results of a prior HSAT within the past 12 months are negative, indeterminate, or technically inadequate to make a diagnosis of OSA; (2) patient is <18 years of age; (3) patient has comorbid conditions that preclude use of HSAT; (4) evaluation is for PLMD, refractory RLS, parasomnia with violent/injurious behavior suspicious for RBD, narcolepsy after other causes excluded, or central sleep apnea; (5) pre-implantation or calibration assessment to rule out central sleep apnea for hypoglossal nerve stimulator.

Comorbid conditions include: FEV1 % predicted < 60; progressive neuromuscular disease; moderate–severe heart failure (NYHA III/IV or LVEF ≤40); BMI > 50; obesity hypoventilation syndrome; documented ongoing epileptic seizures with sleep symptoms; chronic opiate use >3 months.

Daytime studies: MSLT is medically necessary for evaluating suspected narcolepsy when other causes of excessive sleepiness have been excluded by appropriate clinical assessment. MWT is medically necessary for adults who cannot stay awake resulting in safety concerns or to assess treatment response; MWT is not medically necessary for individuals <18 years. Abbreviated daytime studies (e.g., PAP-Nap) are not medically necessary.

Refer to InterQual criteria for detailed coverage where applicable.

PAP titration: Split-night or full-night attended polysomnography for PAP titration is medically necessary when in-lab study criteria are met.

Repeat attended PSG and repeat PAP titration are medically necessary for persistent/recurrent/new symptoms despite appropriate management or for clinically significant weight change (≥10%) or changes in cardiovascular disease since last study.

Diagnostic and testing coverage statements

Covered diagnostic approaches when clinically appropriate

Diagnostic testing options: HSAT is appropriate to diagnose OSA in selected individuals; PSG is required for comprehensive evaluation, diagnosis of non-OSA sleep disorders, or when HSAT is normal/inadequate in a high-risk individual.

HSAT records breathing rate, airflow, heart rate, and SpO2; PSG records multiple physiologic channels attended by a technologist.

OSA diagnostic confirmation: Diagnosis per AASM: AHI or RDI >15/hr without symptoms, or ≥5/hr with associated symptoms (eg daytime sleepiness, unrefreshing sleep, witnessed apneas, loud snoring).AHI/RDI thresholds specified

Severity: Mild ≥5 and <15; Moderate ≥15 and ≤30; Severe >30/hr.

When repeat testing is warranted: If HSAT is technically inadequate or there is clinical concern after a single-night HSAT, perform in-lab PSG; reported data loss for unattended portable monitoring ranges from 3%–33% and device alarms can reduce insufficient data to ~2%.

Key coverage criteria and escalation rules

Covered/recommended actions per evidence and guideline updates

HSAT to PSG escalation: After a single HSAT that is negative, inconclusive, or technically inadequate, do not perform a repeat HSAT; perform attended full-channel polysomnography instead.

AASM Task Force and policy note insufficient evidence to support routine multiple-night HSAT and recommend PSG after a single non-diagnostic HSAT.

Repeat attended PSG and PAP titration medically necessary when: Repeat attended full-channel PSG and repeat PAP titration are medically necessary for individuals with persistent or new symptoms despite documented appropriate current treatment, and for individuals who have experienced clinically significant weight loss or gain (≥10%) or changes in cardiovascular disease since the last study.>=10% (weight change)

Prior authorization may be required per plan rules.

MSLT indication: MSLT is medically necessary for evaluating suspected narcolepsy when other causes of excessive sleepiness have been excluded by appropriate clinical assessment.

Attended PSG following recent HSAT

Attended full-channel polysomnography is indicated when prior HSAT within the past 12 months is not diagnostic.

PSG after HSAT within 12 months: Attended full-channel polysomnography is covered when results of previous HSAT within the past 12 months are negative, indeterminate, or technically inadequate to make a diagnosis of OSA.prior HSAT within 12 months

This replaces prior non-timebound language and establishes a 12-month window.

Repeat attended PSG and PAP titration

Repeat attended full-channel polysomnography and repeat PAP titration are covered when specific conditions are met.

Repeat PSG/PAP criteria: Repeat attended full-channel polysomnography and repeat PAP titration are medically necessary for individuals who have persistent or new symptoms despite documented appropriate current treatment or PAP therapy, or who have experienced clinically significant weight loss or gain (≥10%), or changes in cardiovascular disease since the last study.>=10% weight change

Examples of persistent issues include equipment failure, improper mask fit, pressure leaks, unsuccessful titration, or unresolved medical problems affecting therapy.

HSAT repeat not recommended

HSAT repeat testing guidance

Avoid repeat HSAT after non-diagnostic result: Performing a repeat HSAT is not recommended when an initial HSAT is negative, inconclusive, or technically inadequate because a second test is likely to be similarly non-diagnostic; after a single such HSAT result, attended full-channel polysomnography is strongly recommended.single prior non-diagnostic HSAT

Repeat HSAT is discouraged by AASM guidance and policy revision notes; in selected technical failure cases a second night may be considered operationally, but routine repeat HSAT is not advised.

MSLT for suspected narcolepsy

MSLT coverage criteria

MSLT for suspected narcolepsy: Multiple Sleep Latency Testing (MSLT) is medically necessary for evaluating suspected narcolepsy when other causes of excessive sleepiness have been excluded by appropriate clinical assessment.exclusion of other causes

Ensure documentation of prior evaluation (including PSG where indicated) that excludes alternative causes of hypersomnolence before MSLT; for pediatric MSLT, document adequate sleep on the PSG night (recommended ≥7 hours).

Attended full-channel polysomnography (PSG) and actigraphy are explicitly listed as not medically necessary for certain indications. PSG is not medically necessary for evaluation of circadian rhythm disorders, depression, or insomnia. Actigraphy is considered not medically necessary for any sleep disorders as presented in the policy.

The evidence does not support the use of actigraphy as a stand-alone diagnostic tool for most sleep disorders. Systematic reviews and evidence assessments found limited, inconsistent, and high‑risk-of-bias data and concluded actigraphy has not been validated as an adjunct or alternative to conventional sleep studies for central hypersomnia, insomnia, or OSA.

Home sleep apnea testing (HSAT) is not recommended and in‑lab polysomnography (PSG) is preferred for patients with significant cardiorespiratory disease or other contraindications identified by AASM. Specific exclusions include potential respiratory muscle weakness from neuromuscular disease, awake hypoventilation or suspicion of sleep‑related hypoventilation, chronic opioid use, history of stroke, and severe insomnia; in these clinical contexts PSG should be used rather than HSAT.

Policy language that previously limited the medical necessity of attended full-channel nocturnal PSG performed in an outpatient hospital facility (only when a free‑standing sleep center was unavailable or the member’s condition required the hospital setting) has been removed. The facility‑setting restriction no longer applies in the revised coverage language.

Abbreviated daytime studies such as the described PAP‑Nap are considered not medically necessary due to insufficient evidence. The policy also states that the Maintenance of Wakefulness Test (MWT) is not medically necessary in children and adolescents under 18 years; MWT is reserved for adults when inability to remain awake creates a safety issue or to assess treatment response.

Evidence assessing actigraphy for diagnosis is limited and of low quality; systematic reviews and technology assessments concluded there is insufficient evidence to establish actigraphy alone as an effective diagnostic modality. Therefore actigraphy is not supported as a stand‑alone diagnostic test for sleep disorders in this policy.

The Multiple Sleep Latency Test (MSLT) is not routinely indicated for the initial evaluation or diagnosis of obstructive sleep apnea (OSA) nor for routine reassessment following CPAP. MSLT is medically necessary primarily to evaluate suspected narcolepsy (and to differentiate idiopathic hypersomnia from narcolepsy when appropriate) after other causes of excessive sleepiness have been excluded.

Operationally, performing a repeat HSAT after a single negative, inconclusive, or technically inadequate HSAT is discouraged. The policy (consistent with AASM guidance) states that a second HSAT is likely to be similarly non‑diagnostic; therefore, after a single non‑diagnostic HSAT, attended full‑channel polysomnography is strongly recommended rather than repeating HSAT.

Applicable Codes and Technical Thresholds

Applicable CPT Codes (selected)CPT

95782	Polysomnography; younger than 6 years, sleep staging with 4 or more additional parameters of sleep, attended by a technologist.
95783	Polysomnography; younger than 6 years, sleep staging with 4 or more additional parameters of sleep, with initiation of continuous positive airway pressure therapy or bi-level ventilation, attended by a technologist.
95800	Sleep study, unattended, simultaneous recording; heart rate, oxygen saturation, respiratory analysis (e.g., by airflow or peripheral arterial tone), and sleep time.
95801	Sleep study, unattended, simultaneous recording; minimum of heart rate, oxygen saturation, and respiratory analysis (e.g., by airflow or peripheral arterial tone).
95803	Actigraphy testing, recording, analysis, interpretation, and report (minimum of 72 hours to 14 consecutive days of recording).
95805	Multiple sleep latency or maintenance of wakefulness testing, recording, analysis and interpretation of physiological measurements of sleep during multiple trials to assess sleepiness.
95806	Sleep study, unattended, simultaneous recording of, heart rate, oxygen saturation, respiratory airflow, and respiratory effort (e.g., thoracoabdominal movement).
95807	Sleep study, simultaneous recording of ventilation, respiratory effort, ECG or heart rate, and oxygen saturation, attended by a technologist.
95808	Polysomnography; any age, sleep staging with 1-3 additional parameters of sleep, attended by a technologist.

Additional CPT and HCPCS G-codesmixed

95810	Polysomnography; age 6 years or older, sleep staging with 4 or more additional parameters of sleep, attended by a technologist.
95811	Polysomnography; age 6 years or older, sleep staging with 4 or more additional parameters of sleep, with initiation of continuous positive airway pressure therapy or bilevel ventilation, attended by a technologist.
G0398	Home sleep study test (HST) with type II portable monitor, unattended; minimum of 7 channels: EEG, EOG, EMG, ECG/heart rate, airflow, respiratory effort and oxygen saturation.
G0399	Home sleep test (HST) with type III portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ECG/heart rate and 1 oxygen saturation.
G0400	Home sleep test (HST) with type IV portable monitor, unattended; minimum of 3 channels.

Referenced procedure codesCPT

95807-52

Daytime, abbreviated cardio-respiratory sleep study (PAP-Nap) - code as cited in Krakow et al.

Applicable Codes referencedCPT

95782	code referenced as removed notation regarding NJ Medicaid Fee Schedule
95783	code referenced as removed notation regarding NJ Medicaid Fee Schedule

inv-21: HSAT monitoring time — minimum adequate HSAT monitoring time

Minimum adequate HSAT monitoring time>= 4 hours (adequate HSAT includes minimum sensors: nasal pressure, chest and abdominal respiratory inductance plethysmography, and oximetry)

Monitoring time definitionMonitoring Time = total recording time minus artifact and awake time as determined by actigraphy, body position, respiratory pattern, or diary

HSAT modality noteHSAT is an unattended diagnostic study for OSA without sleep stage determination (out-of-center or portable monitoring)

inv-22: FEV1 % predicted threshold — pulmonary disease severity threshold precluding HSAT

FEV1 % predicted threshold precluding HSAT

Prior Authorization, Documentation, and Operational Guidance

Prior Authorization

Prior Authorization Required for Attended PSG / Titration

Prior authorization is required for attended polysomnography (PSG) and attended PAP titration when medical necessity criteria are met. Submit prior authorization requests with supporting clinical documentation demonstrating why an attended in‑lab study is indicated (see study‑setting and pre‑test documentation guidance). Failure to obtain required prior authorization may result in denial or delayed scheduling.

Prior authorization required for attended full‑channel PSG and attended PAP titration when criteria met
Include clinical rationale if the request follows a negative/inconclusive/technically inadequate HSAT within the prior 12 months

Billing Rule

Coding Reference for Authorization and Claims

Use the listed CPT and HCPCS/G codes when requesting authorization and when submitting claims. Inclusion of a code in this policy is for reference only and does not guarantee coverage or payment — benefits are determined by contract, state and federal rules.

Background and Clinical Context

Overview: Obstructive sleep apnea (OSA) diagnostic testing can be performed by unattended Home Sleep Apnea Testing (HSAT) in appropriately selected adults or by attended in‑lab polysomnography (PSG). HSAT records respiratory parameters, heart rate and oxygenation in the home and is adequate in uncomplicated adult patients when a technically adequate device is used. PSG is the reference standard and records multiple physiologic channels with technologist attendance, and is required for children, for patients with contraindicating comorbidities, or when HSAT is negative, inconclusive, or technically inadequate.

Definitions and Terms

inv-46: Apnea, AHI, HSAT — definitions and core metrics

Apnea definitionCessation of airflow (≥90% decrease) lasting at least 10 seconds; classified as obstructive, central, or mixed

AHI definitionApnea-Hypopnea Index = (number of apneas + number of hypopneas) per hour of sleep

HSAT definition and adequacyHSAT = unattended diagnostic testing for OSA without sleep staging; adequate HSAT = minimum 4 hours and sensors including nasal pressure, chest and abdominal respiratory inductance plethysmography, and oximetry

inv-47: PAP types — CPAP, BPAP, APAP, ASV definitions

CPAPContinuous Positive Airway Pressure: delivers a steady, fixed flow of air pressure on inhalation

BPAP

Policy Summary

PayerUnitedHealthcare

PolicySleep Studies (for New Jersey Only)

Policy CodePolicy CS098NJ.AA

Change TypeCriteria revision and clarifications

Effective DateMar 1, 2026

Next Review DateN/A

Key ActionAfter a single negative, inconclusive, or technically inadequate HSAT, obtain attended full-channel polysomnography rather than repeating HSAT.

SourceLink

On This Page

Although multiple-night HSAT may marginally improve data completeness, evidence is insufficient to recommend routine multiple-night HSAT.

MSLT is not routinely indicated for initial OSA evaluation or routine reassessment after CPAP unless excessive sleepiness persists.

FEV1 % predicted < 60

Severity classification referenceModerate FEV1 = 60-69; Moderately severe = 50-59; Severe = 35-49; Very severe < 35

ContextSignificant chronic pulmonary disease (FEV1 % predicted < 60) is listed among comorbid conditions that prohibit HSAT and require attended PSG

inv-23: Clinically significant weight change — threshold prompting repeat attended testing

Clinically significant weight change prompting repeat attended testing>= 10% change (loss or gain) since last study

Repeat testing contextRepeat attended PSG and repeat PAP titration are medically necessary after clinically significant weight change ≥10%

Supporting citationAdded policy language specifies ≥10% weight change as indication for repeat testing

inv-24: OSA severity thresholds (AHI or RDI) — mild/moderate/severe threshold values

OSA severity — MildAHI or RDI ≥ 5 and < 15 events/hour

OSA severity — ModerateAHI or RDI ≥ 15 and ≤ 30 events/hour

OSA severity — SevereAHI or RDI > 30 events/hour

inv-25: Clinically significant weight change (repeat) — threshold reiterated

Clinically significant weight change (repeat)>= 10% change since prior study

ApplicationTriggers consideration of repeat attended PSG and repeat PAP titration when combined with persistent/new symptoms or cardiovascular changes

Policy historyPolicy revision explicitly added ≥10% weight change as repeat-testing indication

inv-26: Clinically significant weight change (duplicate entry) — threshold reiterated

Clinically significant weight change (duplicate)>= 10% change since previous study

Repeat PAP titration noteRepeat PAP titration considered medically necessary after ≥10% weight change or new/persistent symptoms

Clinical rationaleWeight changes can alter PAP requirements and OSA severity, prompting repeat in-lab evaluation

inv-27: Prior HSAT recency for PSG consideration — within the past 12 months

Prior HSAT recency required for PSG considerationPrior HSAT must have been performed within the past 12 months to justify attended PSG when HSAT results are negative, indeterminate, or technically inadequate

ContextRevised coverage criteria replaced non-timebound requirement with a 12-month window for prior HSAT

Escalation ruleAfter a single non-diagnostic HSAT within 12 months, attended full-channel PSG is strongly recommended rather than repeat HSAT

Common CPT: 95807, 95808, 95810, 95811 (attended PSG and PSG with initiation of PAP)
HSAT / home study codes: 95800, 95801, 95806 and Medicare HCPCS: G0398, G0399, G0400
MSLT/MWT codes: 95805

Prior Authorization

Prior Authorization Guidance for PSG and Repeat Testing

Prior authorization guidance: attended PSG is preferred when prior HSAT within 12 months is negative, indeterminate, or technically inadequate, or when clinical factors (e.g., pediatric patients, significant cardiopulmonary disease, neuromuscular weakness, obesity hypoventilation, chronic opioid use, suspected hypoventilation) preclude HSAT. Repeat attended PSG and repeat PAP titration are medically necessary for persistent/recurrent/new symptoms despite appropriate treatment or following clinically significant weight change (≥10%) or changes in cardiovascular status.

Attended PSG indicated if prior HSAT within 12 months was negative, indeterminate, or technically inadequate
Repeat attended PSG/PAP titration medically necessary for persistent/recurrent/new symptoms despite optimization of therapy
Repeat attended PSG/PAP titration medically necessary after ≥10% weight change or new/worsening cardiovascular disease

Denial Risk

Repeat HSAT Discouraged — Prefer Attended PSG

After a single negative, inconclusive, or technically inadequate HSAT, repeating HSAT is discouraged — attended PSG is strongly recommended instead. Multiple-night HSAT is not routinely supported; repeat HSAT may be denied.

Do not routinely authorize a second HSAT following one negative/inconclusive/technically inadequate HSAT
If HSAT is negative/inconclusive/technically inadequate, request attended PSG for definitive evaluation

Documentation Required

Documentation Required — Risk of Denial if Incomplete

Medical records documenting the clinical rationale and prior testing are required for review and may be requested to determine medical necessity. Lack of adequate supporting documentation may result in denial of authorization or claim payment.

Provide relevant medical history, focused physical exam, and results of prior diagnostic testing (including HSAT and prior PSG reports)
Maintain legible documentation in the medical record and make available upon request

Documentation Required

Study Setting Documentation — HSAT vs PSG

Different diagnostic pathways require appropriate study‑setting documentation: HSAT is unattended and suitable for uncomplicated adults at increased risk for moderate to severe OSA; PSG is attended and performed in a sleep laboratory and is required for pediatric patients, complex comorbidities, or after inadequate HSAT results.

Document why HSAT is inappropriate or why an attended PSG is indicated (e.g., comorbid conditions, prior HSAT result)
If ordering a split‑night study, specify diagnostic portion completed and need for titration during same night

Documentation Required

Pre‑Test Clinical Documentation

Provide pre‑test clinical documentation when ordering specialized studies (e.g., pediatric MSLT guidance includes ensuring adequate prior sleep on PSG the night before). Include symptom history, relevant comorbidities, medication/substance use affecting sleep, and prior test results.

For MSLT in children/adolescents, document prior PSG with minimum recommended sleep duration (e.g., ≥7 hours) the night before testing
Document medications, substance use, and efforts to treat sleep‑disordered breathing prior to MSLT or repeat testing

Note

APAP Option When HSAT Appropriate

When HSAT is appropriate, an autotitrating PAP (APAP) device may be used as an option to determine a fixed PAP pressure. Document rationale for APAP use and results if used in lieu of or prior to attended titration.

APAP may be used to establish fixed pressure when HSAT pathway is followed
Include APAP trial data and clinical response when submitting for authorization of subsequent services

Prior Authorization

PAP Trial / Titration Requirement

A PAP trial/titration is required when OSA is diagnosed and may be performed as a split‑night study or a full‑night attended titration if split‑night is infeasible. Document diagnostic confirmation of OSA and reasons a split‑night protocol is not appropriate when requesting a full‑night titration.

Split‑night study acceptable for combined diagnosis and titration when diagnostic criteria met during first half of night
Full‑night titration medically necessary when split‑night is inadequate or not feasible and OSA diagnosis is confirmed

Note

PAP‑Nap — Contextual Note on Use and Evidence

PAP‑Nap testing is primarily a preparatory/behavioral exposure procedure to improve tolerance to PAP therapy for patients with anxiety, claustrophobia, or prior PAP rejection. Evidence is limited; include behavioral indications and prior treatment attempts when requesting authorization. Large prospective data are lacking and clinical utility remains investigational.

PAP‑Nap may be considered for patients who refuse standard titration due to anxiety/claustrophobia or who have failed initial PAP initiation attempts
Because evidence is limited, provide detailed justification and prior treatment history when requesting PAP‑Nap authorization

Bilevel Positive Airway Pressure: delivers higher pressure on inhalation than exhalation

APAP and ASVAPAP = Autotitrating Positive Airway Pressure that adjusts pressure based on breathing patterns; ASV = Adaptive Servoventilation that adjusts flow breath-by-breath to maintain ventilation

inv-48: Parasomnia — definition

Parasomnia definitionUndesirable physical events or experiences occurring during entry into sleep, within sleep, or during arousal, characterized by abnormal movements, behaviors, emotions, perceptions, dreams, and autonomic activity

Clinical relevanceIncludes disorders occurring in NREM, REM, or sleep-wake transitions and may result in injury, sleep disruption, or adverse health effects

inv-49: Polysomnogram (Attended) — definition

Polysomnogram (Attended) definitionLaboratory-based sleep study recording multiple physiological signals including brain activity, eye movements, body movements, breathing and heart rate, attended by a technologist

ChannelsFull attended PSG uses multiple channels (Type 1) to provide comprehensive physiologic assessment

inv-50: Respiratory Disturbance Index (RDI) — definition

Respiratory Disturbance Index (RDI)Number of Apneas + Hypopneas + Respiratory Effort-Related Arousals per hour of sleep

Relation to AHIRDI is reported alongside AHI; RDI sometimes used synonymously with AHI but may include RERAs

inv-51: HSAT device types (G0398-G0400) — device classification by channel count

G0398 (Type II)Type II home sleep test: unattended; minimum of 7 channels (EEG, EOG, EMG, ECG/HR, airflow, effort, SpO2)

G0399 (Type III)Type III home sleep test: unattended; minimum of 4 channels (usually 2 respiratory movement/airflow, 1 ECG/HR, 1 SpO2)

G0400 (Type IV)Type IV home sleep test: unattended; minimum of 3 channels

inv-52: Multiple Sleep Latency Test (MSLT) — description and primary indication

MSLT descriptionMultiple Sleep Latency Test: daytime study measuring physiological sleep tendency under standardized conditions to assess sleepiness

Primary indicationPrimarily indicated to confirm narcolepsy or to help differentiate idiopathic hypersomnia from narcolepsy in selected cases

Operational noteMSLT is not routinely indicated for initial OSA evaluation or routine reassessment after CPAP unless excessive sleepiness persists

inv-53: Home Sleep Apnea Test (HSAT) — definition and operational recommendation that single negative/inconclusive HSAT should prompt PSG rather than repeat HSAT

HSAT definitionHome Sleep Apnea Test (HSAT) = unattended out-of-center testing for suspected OSA without sleep stage determination; used in selected uncomplicated adults

Operational recommendationA single negative, inconclusive, or technically inadequate HSAT should prompt in-lab attended PSG rather than repeating HSAT

Adequacy criteriaAdequate HSAT = minimum 4 hours and includes nasal pressure, chest and abdominal respiratory inductance plethysmography, and oximetry

inv-54: PAP-Nap — definition of abbreviated daytime cardio-respiratory desensitization study

PAP-Nap definitionA 100-minute daytime abbreviated cardio-respiratory desensitization study combining mask/pressure desensitization and psychological techniques to increase PAP acceptance and adherence

Evidence noteLiterature describes PAP-Nap as preparatory/behavioral exposure procedure; randomized trial evidence is lacking and further studies are needed

inv-55: Medical record documentation — definition/summary of medical record requirements for medically necessary services

Medical record documentation requirementPatient medical record must document relevant history, physical exam, and results of pertinent diagnostic tests to fully support medical necessity

AvailabilityDocumentation should be legible, maintained in the patient's record, and made available upon request

Coverage noteMedical records may be required to assess whether clinical criteria are met but documentation does not guarantee coverage