Poisoning by unsp systemic antibiotic, self-harm, sequela

This code indicates a long-term consequence or complication arising from a deliberate overdose of an unspecified systemic antibiotic. The initial poisoning event occurred in the past, and the patient is now presenting with a residual effect directly attributable to that intentional self-harm.

Apply this code when documenting a current health condition that is a direct sequela of a past intentional self-poisoning with an unknown systemic antibiotic. This is appropriate for follow-up encounters where the acute poisoning has resolved, but lasting effects persist.

• Requires a seventh character 'S' for sequela, indicating a complication or condition arising from a previous injury or disease.
• Do not use for acute poisoning events; those require an initial encounter or subsequent encounter seventh character.
• Always code the specific sequela (e.g., kidney damage, neurological impairment) first, followed by this code to indicate the cause.