Adverse effect of antitussives, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to an antitussive medication. This means the patient experienced an unwanted and harmful effect from a cough suppressant, and that effect has now become a lasting problem or complication.

Apply this code when documenting a chronic or persistent health issue directly attributable to a past adverse effect of an antitussive. Examples include permanent neurological damage, chronic organ dysfunction, or persistent psychological sequelae following an acute adverse drug event from a cough medicine.

• Always sequence this code after the code for the specific sequela (e.g., chronic kidney disease, permanent brain damage).
• Ensure documentation clearly links the current condition to a past adverse effect of an antitussive.
• Do not use this code for acute adverse effects; this is specifically for residual conditions.