Poisn by succinimides and oxazolidinediones, undet, sequela

This code signifies a past poisoning event due to succinimides or oxazolidinediones where the intent (accidental, intentional self-harm, assault) could not be determined, and the patient is now experiencing residual effects or complications from that poisoning. These drug classes are primarily used as anticonvulsants. The "sequela" indicates that the acute poisoning has resolved, but long-term health issues persist.

Apply this code when documenting a patient presenting with chronic neurological deficits, organ damage, or other persistent health problems directly attributable to a past, undetermined poisoning by succinimides or oxazolidinediones. This is appropriate when the acute phase of the poisoning has passed, and the current encounter addresses the lingering effects.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic kidney disease, neurological deficit).
• Ensure documentation clearly links the current condition to a past poisoning by these specific drug classes and states the undetermined intent.
• Do not use for acute poisoning events; this code is exclusively for the long-term effects.