Does J01.21 require prior authorization?

No, J01.21 does not require prior authorization (high confidence). Covered without prior authorization.

`J01.21`, Acute recurrent ethmoidal sinusitis

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.
Allergy testing is covered when the patient has clinically significant allergic symptoms and conservative therapy has failed.
Allergy testing includes performance, evaluation, and reading of cutaneous and mucous membrane tests together with physician history (including immunologic history), physical examination, antigen selection, and interpretation of results.
Standard skin testing is the preferred method when allergy testing is necessary.
When a percutaneous or intracutaneous single test (CPT 95004 or 95024) and sequential/incremental tests (CPT 95017, 95018, 95027) are performed the same day, both code types may be reported only if they are for different allergens or for different dilutions of the same allergen.

CGS-J15-L40325, Allergy Diagnostic Testing

J15

CGS-J18-L40325, Allergy Diagnostic Testing

J18

A57473, Billing and Coding: Allergy Testing

WPS-J5-L36402, Allergy Testing

NGS-J6-L40329, Allergy Diagnostic Testing

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