Poisoning by antitussives, assault, sequela

This code signifies a long-term or residual effect resulting from an intentional overdose or poisoning by an antitussive medication, where the poisoning was inflicted by another person. The patient is no longer in the acute phase of the poisoning but is experiencing ongoing health issues directly attributable to the past assault.

Apply this code when documenting chronic conditions, permanent disabilities, or persistent symptoms that are a direct consequence of a previous antitussive poisoning that occurred as an assault. This code is appropriate for follow-up encounters or when the sequelae are being treated after the acute poisoning event has resolved.

• Always sequence this sequela code after the code for the specific residual condition.
• Ensure documentation clearly links the current condition to the past antitussive poisoning and specifies the assault intent.
• Do not use this code for acute poisoning; instead, use the appropriate acute poisoning code with the 7th character 'A' for initial encounter.