Does P91.1 require prior authorization?

No, P91.1 does not require prior authorization (high confidence). Covered without prior authorization.

`P91.1`, Acquired periventricular cysts of newborn

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

Medical records must include history and physical notes, laboratory results, and documentation of signs and symptoms that warrant the head/neck diagnostic imaging.
Accurate HCPCS/CPT coding must be submitted to differentiate CT and MRI scans from other radiology services and to support coverage determinations.
Documentation and supporting information must be available to Medicare upon request.
Providers should check and apply Correct Coding Initiative (CCI) edits and applicable LCD guidance for correct code combinations before billing.

CT or MRI scans of the head or neck are covered when the medical record documents the scan is reasonable and necessary for diagnostic evaluation.
Coverage requires documentation supporting clinical indication such as history and physical exam findings, laboratory results, and signs or symptoms that justify the diagnostic test.
Intraoperative EMG monitoring of the facial nerve during surgery for cholesteatoma, including mastoidotomy or mastoidectomy
ICD-10 codes covered if selection criteria are met for intraoperative SEPs (as listed): "H93.3x1 - H93.3x9" Disorders of acoustic nerve [compression].
ICD-10 codes covered if selection criteria are met for intraoperative SEPs (as listed): "I06.0 - I06.9" Diseases of aortic valve.
ICD-10 codes covered if selection criteria are met for intraoperative SEPs (as listed): "I35.0 - I35.9" Nonrheumatic aortic valve disorders.

AETNA-CPB-0697, Intraoperative Neurophysiological Monitoring

A57204, Billing and Coding: MRI and CT Scans of the Head and Neck

Ask Backwork about documentation requirements, denial risks, or coverage in your state.