Does A92.39 require prior authorization?

No, A92.39 does not require prior authorization (high confidence). Covered without prior authorization.

`A92.39`, West Nile virus infection with other complications

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.
Off-label IVIG use may be billed when supported by the applicable Local Coverage Determination (LCD) and by documentation of medical necessity; off-label is defined as not in Medicare-approved compendia or the FDA label.
IVIG may be used in bone marrow/stem cell transplantation when the recipient was CMV seropositive before transplantation, or after allogeneic transplantation for hematologic neoplasm when both donor and recipient were CMV seronegative.
IVIG may be used in solid organ transplantation when the donor was CMV seropositive and the recipient was CMV seronegative prior to transplantation.
IVIG may be used for recurrent severe infections when there is documented severe or absent IgG subclass deficiency or clinically significant functional humoral immunity deficiency (failure to produce specific antibodies) with a history of recurrent infections.

NGS-J6-L39314, Off-Label Use of Intravenous Immune Globulin (IVIG)

A59105, Billing and Coding: Off-Label Use of Intravenous Immune Globulin (IVIG)

NGS-JK-L39314, Off-Label Use of Intravenous Immune Globulin (IVIG)

AETNA-CPB-0779, Plerixafor

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.