Does H66.21 require prior authorization?

No, H66.21 does not require prior authorization (high confidence). Covered without prior authorization.

`H66.21`, Chronic atticoantral suppurative otitis media, right ear

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.
CPT codes 92553, 92557, and 92568 are allowable when the beneficiary has current long-term use of ototoxic antibiotics.
The professional component (PC) of CPT codes 92537, 92538, 92541, 92542, 92544, 92545, 92546, 92587, 92588, 92651, 92652, and 92653 may be reported when the PC is performed in inpatient, outpatient, rehabilitation facilities, nursing facilities (when Part A benefits are exhausted), hearing and speech centers, independent clinics, or independent diagnostic testing facilities (IDTF).
Technical-only CPT codes 92547, 92552, 92553, 92555, 92556, 92562, 92563, 92565, 92571, 92572, 92575, 92576, 92577, 92582, 92583, and 92584 may be reported when performed in office settings, clinics, hearing and speech centers, and nursing facilities.
Payment for technical components of TC/PC services (when the PC is performed by an appropriate professional) and for technical-only services is allowed to hospitals.

NOVITAS-JH-L35007, Vestibular and Audiologic Function Studies

NOVITAS-JL-L35007, Vestibular and Audiologic Function Studies

A57434, Billing and Coding: Vestibular and Audiologic Function Studies

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.