Poisoning by barbiturates, undetermined, sequela

This code indicates a long-term health problem or complication resulting from a past poisoning event involving barbiturates, where the intent of the poisoning (accidental, intentional self-harm, assault) could not be determined. It signifies that the acute phase of the poisoning has resolved, but its lasting effects are still present and being treated.

Apply this code when a patient presents with a chronic condition or permanent injury directly attributable to a previous barbiturate poisoning of unknown intent. This is appropriate for follow-up care or management of residual neurological deficits, organ damage, or other lasting sequelae. Do not use for the initial acute poisoning event.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., neurological deficit, kidney failure).
• Ensure documentation clearly links the current condition to a past barbiturate poisoning and specifies the "undetermined" intent.
• Verify that the acute poisoning episode has concluded and the patient is being treated for the chronic effects.