Poisoning by calcium-channel blockers, accidental, sequela

This code signifies a long-term health problem or condition that arose as a direct result of an accidental overdose or ingestion of calcium-channel blocker medications. The initial acute poisoning event has resolved, but the patient is now experiencing residual effects or complications.

Apply this code when documenting a patient presenting with chronic organ damage, neurological deficits, or other persistent health issues directly attributable to a past, unintentional calcium-channel blocker poisoning. This is used after the acute phase of the poisoning has passed and the patient is being treated for the lasting consequences.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic kidney disease, cardiac arrhythmia).
• Ensure documentation clearly links the current condition to a past accidental calcium-channel blocker poisoning.
• Do not use this code for the initial acute poisoning event; use the acute poisoning code (T46.1X1A) for that scenario.