P90 Insurance Policy Changes

ICD-10 P90 is officially defined as "Convulsions of newborn." code P90 is referenced in 2 tracked payer policy changes from Aetna. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for code P90 is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.

Only a small number of policies match this filter. Check back as coverage expands.

Aetna · Identified Aug 14, 2026Medium impact
Attended Electroencephalographic (EEG) Video Monitoring (CPB 0322, reviewed 2026-06-08)
Aetna considers attended electroencephalographic (EEG) video monitoring performed in a healthcare facility medically necessary when diagnosis remains uncertain after neurological examinations and standard EEG studies within the past 90 days, non-neurological causes such as syncope or cardiac arrhythmias have been ruled out, and documentation shows that extended ambulatory EEG monitoring as an outpatient would not be sufficient for the member's needs. Covered indications include differentiating epileptic events from psychogenic seizures, establishing the specific type of epilepsy in poorly characterized seizure types, establishing the diagnosis of epilepsy and evaluating response to treatment in children 3 years of age or younger, children with severe cognitive deficits, and older persons unable to communicate due to disability, evaluating newborns with proven or suspected acute brain injury and co-morbid encephalopathy, and identifying a seizure focus in members with intractable epilepsy who are being considered for epilepsy surgery. Monitoring longer than 7 days is medically necessary when events are so infrequent that they would likely not be detected within one week, when an extended stay is needed for care of an adverse event, or when medication adjustments require ongoing monitoring that cannot be safely performed on an outpatient basis. Once the cause of seizures and the specific type of epilepsy have been established, continued video EEG monitoring in older children and adults is considered not medically necessary. Attended EEG video monitoring for medical clearance to operate a motor vehicle is not considered medically necessary, and it is considered experimental, investigational or unproven for other indications including obstructive sleep apnea, assessment of the effectiveness of drug treatment in epilepsies, amyotrophic lateral sclerosis, cardiac arrest, chronic fatigue, coma, diagnosis of brain death, encephalopathy and headache.
Aetna · Identified Aug 12, 2026Medium impact
Ambulatory Electroencephalography (CPB 0425, reviewed 2026-07-07)
Aetna considers ambulatory EEG, with or without home video monitoring, medically necessary to classify seizure type in members with epilepsy when routine EEG is equivocal, to diagnose a seizure disorder when history, examination and routine EEG do not resolve the diagnostic uncertainty, and to localize the epileptogenic region during pre-surgical evaluation. These indications apply where the member has had a neurologic examination and standard EEG studies within the past 12 months. Combined ambulatory EEG and home-video recording is considered an equally acceptable alternative to ambulatory EEG alone, while ambulatory EEG for all other indications and implantable sub-scalp continuous EEG systems such as Epios and Minder for managing epilepsy are considered experimental, investigational or unproven.

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FREQUENTLY ASKED QUESTIONS

What insurance policy changes affect code P90?

There are 2 tracked policy changes affecting code P90, including updates from Aetna. Each change may modify coverage criteria, reimbursement rates, or prior-authorization requirements.

Which payers have updated policy for code P90?

Payers that have issued tracked updates for code P90 include: Aetna.

How do I get notified when code P90 policy changes?

Create a free account at PolicyChanges.app and save a search filtered to code P90. You will get an email when new policy changes reference this code: daily or weekly, your choice, on every plan.

Why do payers change policies for code P90?

Payers revise policies for individual billing codes to align with updated clinical guidelines, CMS rule changes, fraud and abuse prevention measures, or network cost-management goals. Changes can affect medical necessity criteria, place-of-service restrictions, bundling rules, or whether a code requires prior authorization.

All billing codes J3590 C9399 J3490 99215 99213 99202

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Attended Electroencephalographic (EEG) Video Monitoring (CPB 0322, reviewed 2026-06-08)

Ambulatory Electroencephalography (CPB 0425, reviewed 2026-07-07)

What insurance policy changes affect code P90?

Which payers have updated policy for code P90?

How do I get notified when code P90 policy changes?

Why do payers change policies for code P90?