Underdosing of succinimides and oxazolidinediones, init

This code signifies that a patient has taken less than the prescribed amount of a succinimide or oxazolidinedione medication, leading to a therapeutic failure or recurrence of symptoms. These drug classes are primarily used as anticonvulsants to manage seizure disorders.

Use this code when a patient presents with uncontrolled seizures or other symptoms due to not taking enough of their prescribed succinimide (e.g., ethosuximide) or oxazolidinedione (e.g., trimethadione) medication. This applies to the initial presentation of the underdosing event requiring active treatment.

• Always use in conjunction with a code for the specific medical condition being treated (e.g., epilepsy).
• Ensure documentation clearly states the underdosing was the cause of the current clinical presentation.
• The "A" in the seventh character indicates an initial encounter for this underdosing event.