Aetna · Clinical coverage policy

Aetna Multiple Sleep Latency Test (MSLT) coverage criteria

Aetna CPB 0330 covers the Multiple Sleep Latency Test (MSLT) and Maintenance of Wakefulness Test (MWT) as medically necessary only for two purposes: confirming a diagnosis of narcolepsy, or differentiating suspected idiopathic hypersomnia from narcolepsy. Repeat testing is not covered unless the first test was invalid/uninterpretable, was compromised by extraneous circumstances or missing study conditions, or failed to provide polygraphic confirmation in suspected narcolepsy. Home MSLT, single-nap studies, and use for any other indication (e.g., ADHD, chronic fatigue, circadian rhythm disorders, insomnia, OSA, restless leg syndrome, parasomnias, modafinil efficacy, psychiatric hypersomnolence, or non-narcolepsy neurologic disorders) are considered experimental, investigational, or unproven.

Policy CPB 0330 · Effective · Verify against the current Aetna policy before submitting — view source policy.

Payer

Aetna

Policy

CPB 0330

Prior auth

Confirm

Effective

January 1, 2026

This page reflects the coverage criteria captured from Aetna policy CPB 0330 and may not include every criterion, exception, or code — verify the complete bulletin before submitting.

What this means for the claim

The covered path, the next step to get it approved, and the specific way it denies — built only from this policy.

When does Aetna cover Multiple Sleep Latency Test (MSLT) (CPT 95805), and what gets it denied?

Path
Aetna CPB 0330 covers the Multiple Sleep Latency Test (MSLT) and Maintenance of Wakefulness Test (MWT) as medically necessary only for two purposes: confirming a diagnosis of narcolepsy, or differentiating suspected idiopathic hypersomnia from narcolepsy. Repeat testing is not covered unless the first test was invalid/uninterpretable, was compromised by extraneous circumstances or missing study conditions, or failed to provide polygraphic confirmation in suspected narcolepsy. Home MSLT, single-nap studies, and use for any other indication (e.g., ADHD, chronic fatigue, circadian rhythm disorders, insomnia, OSA, restless leg syndrome, parasomnias, modafinil efficacy, psychiatric hypersomnolence, or non-narcolepsy neurologic disorders) are considered experimental, investigational, or unproven. Coverage criteria include: Aetna considers the multiple sleep latency test (MSLT) and maintenance of wakefulness test (MWT) medically necessary for EITHER of the following 2 indications: (1) For evaluation of symptoms of narcolepsy, to confirm the diagnosis; OR (2) For evaluation of persons with suspected idiopathic hypersomnia to help differentiate idiopathic hypersomnia from narcolepsy.; Medically necessary indication 1 (of 2): MSLT/MWT for evaluation of symptoms of narcolepsy, to confirm the diagnosis.; Medically necessary indication 2 (of 2): MSLT/MWT for evaluation of persons with suspected idiopathic hypersomnia to help differentiate idiopathic hypersomnia from narcolepsy.; Repeat MSLT and MWT tests are considered NOT medically necessary, UNLESS ONE of the following applies: (1) The initial test was invalid or uninterpretable; OR (2) The initial test is affected by extraneous circumstances or when study conditions were not present during initial testing; OR (3) The patient is suspected to have narcolepsy but earlier MSLT or MWT evaluation did not provide polygraphic confirmation.; Repeat testing exception: a repeat MSLT/MWT is medically necessary when the initial test was invalid or uninterpretable.; Repeat testing exception: a repeat MSLT/MWT is medically necessary when the initial test was affected by extraneous circumstances, or when study conditions were not present during initial testing.; Repeat testing exception: a repeat MSLT/MWT is medically necessary when the patient is suspected to have narcolepsy but an earlier MSLT or MWT evaluation did not provide polygraphic confirmation.. Applies to 1 code: 95805.
Action
Confirm prior-authorization status with Aetna before scheduling — it is code- and plan-specific, and this policy is not an exact authorization source.
Trap
Policy exclusions and limitations: Repeat MSLT and MWT tests are considered NOT medically necessary, unless one of the stated repeat-testing exceptions applies (initial test invalid/uninterpretable; affected by extraneous circumstances or study conditions not present; or suspected narcolepsy without earlier polygraphic confirmation).; Considered experimental, investigational, or unproven: Home MSLT, because home MSLT has not been proven to be equivalent to formal MSLT performed in a sleep laboratory.; Considered experimental, investigational, or unproven: Single nap studies, because a full MSLT or MWT is required for accurate diagnosis of narcolepsy.; MSLT and MWT are considered experimental, investigational, or unproven for all other indications, including the following (items below).; Experimental/investigational indication: Attention-deficit/hyperactivity disorder (ADHD).; Experimental/investigational indication: Chronic fatigue syndrome.; Experimental/investigational indication: Circadian rhythm disorders.; Experimental/investigational indication: Evaluation of common, uncomplicated or non-injurious parasomnias (such as typical disorders of arousal, bruxism, enuresis, nightmares, or sleep talking).; Experimental/investigational indication: Evaluation of the effectiveness of modafinil therapy in narcolepsy.; Experimental/investigational indication: Insomnia.; Experimental/investigational indication: Neurologic disorders other than narcolepsy (e.g., dementia, Alzheimer's disease, dementia with Lewy bodies, Parkinson's disease).; Experimental/investigational indication: Obstructive sleep apnea syndrome.; Experimental/investigational indication: Psychiatric hypersomnolence.; Experimental/investigational indication: Restless leg syndrome. Claims may be denied when the requested service falls under these. Some of these are conditional (note the stated exceptions) — confirm specifics against the bulletin.

Source: Aetna CPB 0330 — Multiple Sleep Latency Test (MSLT)

Coverage criteria

  • Aetna considers the multiple sleep latency test (MSLT) and maintenance of wakefulness test (MWT) medically necessary for EITHER of the following 2 indications: (1) For evaluation of symptoms of narcolepsy, to confirm the diagnosis; OR (2) For evaluation of persons with suspected idiopathic hypersomnia to help differentiate idiopathic hypersomnia from narcolepsy.
  • Medically necessary indication 1 (of 2): MSLT/MWT for evaluation of symptoms of narcolepsy, to confirm the diagnosis.
  • Medically necessary indication 2 (of 2): MSLT/MWT for evaluation of persons with suspected idiopathic hypersomnia to help differentiate idiopathic hypersomnia from narcolepsy.
  • Repeat MSLT and MWT tests are considered NOT medically necessary, UNLESS ONE of the following applies: (1) The initial test was invalid or uninterpretable; OR (2) The initial test is affected by extraneous circumstances or when study conditions were not present during initial testing; OR (3) The patient is suspected to have narcolepsy but earlier MSLT or MWT evaluation did not provide polygraphic confirmation.
  • Repeat testing exception: a repeat MSLT/MWT is medically necessary when the initial test was invalid or uninterpretable.
  • Repeat testing exception: a repeat MSLT/MWT is medically necessary when the initial test was affected by extraneous circumstances, or when study conditions were not present during initial testing.
  • Repeat testing exception: a repeat MSLT/MWT is medically necessary when the patient is suspected to have narcolepsy but an earlier MSLT or MWT evaluation did not provide polygraphic confirmation.

Covered codes

Codes listed in this Aetna policy. Check each one's prior-authorization verdict and Medicare rate:

Frequently asked questions

When does Aetna cover Multiple Sleep Latency Test (MSLT) (CPT 95805), and what gets it denied?
Aetna CPB 0330 covers the Multiple Sleep Latency Test (MSLT) and Maintenance of Wakefulness Test (MWT) as medically necessary only for two purposes: confirming a diagnosis of narcolepsy, or differentiating suspected idiopathic hypersomnia from narcolepsy. Repeat testing is not covered unless the first test was invalid/uninterpretable, was compromised by extraneous circumstances or missing study conditions, or failed to provide polygraphic confirmation in suspected narcolepsy. Home MSLT, single-nap studies, and use for any other indication (e.g., ADHD, chronic fatigue, circadian rhythm disorders, insomnia, OSA, restless leg syndrome, parasomnias, modafinil efficacy, psychiatric hypersomnolence, or non-narcolepsy neurologic disorders) are considered experimental, investigational, or unproven. Coverage criteria include: Aetna considers the multiple sleep latency test (MSLT) and maintenance of wakefulness test (MWT) medically necessary for EITHER of the following 2 indications: (1) For evaluation of symptoms of narcolepsy, to confirm the diagnosis; OR (2) For evaluation of persons with suspected idiopathic hypersomnia to help differentiate idiopathic hypersomnia from narcolepsy.; Medically necessary indication 1 (of 2): MSLT/MWT for evaluation of symptoms of narcolepsy, to confirm the diagnosis.; Medically necessary indication 2 (of 2): MSLT/MWT for evaluation of persons with suspected idiopathic hypersomnia to help differentiate idiopathic hypersomnia from narcolepsy.; Repeat MSLT and MWT tests are considered NOT medically necessary, UNLESS ONE of the following applies: (1) The initial test was invalid or uninterpretable; OR (2) The initial test is affected by extraneous circumstances or when study conditions were not present during initial testing; OR (3) The patient is suspected to have narcolepsy but earlier MSLT or MWT evaluation did not provide polygraphic confirmation.; Repeat testing exception: a repeat MSLT/MWT is medically necessary when the initial test was invalid or uninterpretable.; Repeat testing exception: a repeat MSLT/MWT is medically necessary when the initial test was affected by extraneous circumstances, or when study conditions were not present during initial testing.; Repeat testing exception: a repeat MSLT/MWT is medically necessary when the patient is suspected to have narcolepsy but an earlier MSLT or MWT evaluation did not provide polygraphic confirmation.. Applies to 1 code: 95805. Confirm prior-authorization status with Aetna before scheduling — it is code- and plan-specific, and this policy is not an exact authorization source. Policy exclusions and limitations: Repeat MSLT and MWT tests are considered NOT medically necessary, unless one of the stated repeat-testing exceptions applies (initial test invalid/uninterpretable; affected by extraneous circumstances or study conditions not present; or suspected narcolepsy without earlier polygraphic confirmation).; Considered experimental, investigational, or unproven: Home MSLT, because home MSLT has not been proven to be equivalent to formal MSLT performed in a sleep laboratory.; Considered experimental, investigational, or unproven: Single nap studies, because a full MSLT or MWT is required for accurate diagnosis of narcolepsy.; MSLT and MWT are considered experimental, investigational, or unproven for all other indications, including the following (items below).; Experimental/investigational indication: Attention-deficit/hyperactivity disorder (ADHD).; Experimental/investigational indication: Chronic fatigue syndrome.; Experimental/investigational indication: Circadian rhythm disorders.; Experimental/investigational indication: Evaluation of common, uncomplicated or non-injurious parasomnias (such as typical disorders of arousal, bruxism, enuresis, nightmares, or sleep talking).; Experimental/investigational indication: Evaluation of the effectiveness of modafinil therapy in narcolepsy.; Experimental/investigational indication: Insomnia.; Experimental/investigational indication: Neurologic disorders other than narcolepsy (e.g., dementia, Alzheimer's disease, dementia with Lewy bodies, Parkinson's disease).; Experimental/investigational indication: Obstructive sleep apnea syndrome.; Experimental/investigational indication: Psychiatric hypersomnolence.; Experimental/investigational indication: Restless leg syndrome. Claims may be denied when the requested service falls under these. Some of these are conditional (note the stated exceptions) — confirm specifics against the bulletin.
Does Aetna require prior authorization for Multiple Sleep Latency Test (MSLT)?
Confirm prior-authorization status with Aetna before scheduling — it is code- and plan-specific, and this policy is not an exact authorization source.
What does Aetna exclude for Multiple Sleep Latency Test (MSLT)?
Policy exclusions and limitations: Repeat MSLT and MWT tests are considered NOT medically necessary, unless one of the stated repeat-testing exceptions applies (initial test invalid/uninterpretable; affected by extraneous circumstances or study conditions not present; or suspected narcolepsy without earlier polygraphic confirmation).; Considered experimental, investigational, or unproven: Home MSLT, because home MSLT has not been proven to be equivalent to formal MSLT performed in a sleep laboratory.; Considered experimental, investigational, or unproven: Single nap studies, because a full MSLT or MWT is required for accurate diagnosis of narcolepsy.; MSLT and MWT are considered experimental, investigational, or unproven for all other indications, including the following (items below).; Experimental/investigational indication: Attention-deficit/hyperactivity disorder (ADHD).; Experimental/investigational indication: Chronic fatigue syndrome.; Experimental/investigational indication: Circadian rhythm disorders.; Experimental/investigational indication: Evaluation of common, uncomplicated or non-injurious parasomnias (such as typical disorders of arousal, bruxism, enuresis, nightmares, or sleep talking).; Experimental/investigational indication: Evaluation of the effectiveness of modafinil therapy in narcolepsy.; Experimental/investigational indication: Insomnia.; Experimental/investigational indication: Neurologic disorders other than narcolepsy (e.g., dementia, Alzheimer's disease, dementia with Lewy bodies, Parkinson's disease).; Experimental/investigational indication: Obstructive sleep apnea syndrome.; Experimental/investigational indication: Psychiatric hypersomnolence.; Experimental/investigational indication: Restless leg syndrome. Claims may be denied when the requested service falls under these. Some of these are conditional (note the stated exceptions) — confirm specifics against the bulletin.

Source

Aetna CPB 0330 — Multiple Sleep Latency Test (MSLT)

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Coverage disclaimer

This page summarizes Aetna clinical-coverage criteria extracted from policy CPB 0330 for educational purposes. Coverage policies change and vary by individual plan. Always verify against Aetna's current policy before performing a procedure or submitting a claim. d3rx is not responsible for claim denials or reimbursement issues.