In simple words: This procedure uses an injection to weaken facial muscles on one side of the face, relieving conditions like uncontrolled eyelid closing or painful muscle spasms.

This procedure involves the unilateral chemodenervation of muscles innervated by the facial nerve.A chemical agent, such as botulinum toxin, is injected into specific muscles to temporarily weaken or paralyze them. This is commonly used to treat conditions like blepharospasm (uncontrolled eyelid closure) and hemifacial spasm (involuntary muscle contractions on one side of the face).

Example 1: A patient presents with blepharospasm (involuntary eyelid closure). The physician injects botulinum toxin into the orbicularis oculi muscles of the left eye to reduce muscle spasms and improve eyelid opening., A patient experiences hemifacial spasm (involuntary facial muscle contractions) on the right side of their face. The physician performs a chemodenervation procedure, injecting botulinum toxin into the affected muscles to reduce spasms and pain., A patient has severe facial wrinkles.The physician uses botulinum toxin injections to reduce wrinkle appearance. Note that this use is considered cosmetic and may not be covered by insurance.

A covered diagnosis (e.g., blepharospasm, hemifacial spasm).Precise location(s) of injection.Dosage of botulinum toxin administered.Pre- and post-injection assessment of symptoms.Patient's response to the treatment.

** The supply of the chemodenervation agent (e.g., botulinum toxin) is reported separately using appropriate J-codes.Ultrasound guidance may be reported separately using appropriate codes. Always check payer-specific guidelines for coverage and reimbursement.