Does G51.31 require prior authorization?

No, G51.31 does not require prior authorization (high confidence). Covered without prior authorization.

`G51.31`, Clonic hemifacial spasm, right

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

All documentation must be available upon request and the medical record must support the medical necessity and frequency of treatment.
The medical record must document the critical nature of the anatomy or other circumstances necessitating stereotactic treatment, the patient's functional status including Karnofsky Performance Status, the treatment date(s), and the current treatment dose.
When requesting individual consideration at redetermination, providers must submit all relevant medical records and supporting literature, including at minimum two Phase II studies or one Phase III study for Contractor Medical Director review.
If billing more than allowed units of CPT 77334 (total units >6 or units > isocenters+3), document factors such as multiple isocenters, target volume irregularity, proximity to critical structures, or other reasons justifying additional dosimetry/treatment device units.

Stereotactic radiosurgery (SRS) is typically furnished as a single session; when more than one session is required, bill using stereotactic body radiation therapy (SBRT) codes instead of SRS codes.
Coverage on an individual (redetermination/appeal) basis may be considered for lesions that require a high radiation dose per fraction to avoid exposure of surrounding tissues when documentation and supporting literature are provided.
Electrodiagnostic testing (EMG and/or nerve conduction studies) is indicated for evaluation of suspected carpal tunnel syndrome.
EMG and/or nerve conduction studies are indicated for evaluation of suspected radiculopathy.
EMG and/or nerve conduction studies are indicated for evaluation of suspected mononeuropathy (single-nerve entrapment or injury).
EMG and/or nerve conduction studies are indicated for evaluation of suspected polyneuropathy or mononeuropathy multiplex.

CGS-J15-L39857, Botulinum Toxin Injections

J15

CGS-J15-L39856, Botulinum Toxin Injections

J15

CGS-J15-L33944, Blepharoplasty

J15

CGS-J15-L35897, Nerve Conduction Studies and Electromyography

J15

CGS-J18-L39856

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