Phenytoin is an anticonvulsant hydantoin used for the treatment of generalized tonic-clonic (grandmal) and complex partial seizures. Phenytoin is also used for prophylaxis in neurosurgical procedures. Phenytoin levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity.
Collect as a trough just prior next dose. For patients receiving
fosphenytoin therapy, collect as trough at least 2 hours after IV
infusion or at least 4 hours after IM injection.
Reported (Analytical Time)
The CPT codes provided are based on AMA guidelines and are for informational purposes only.
CPT coding is the sole responsibility of the billing party.
Please direct any questions regarding coding to the payer being billed.
Reject Criteria: Serum separator tube Transport Temperature: Room temperature