Poisoning by oth drug/meds/biol subst, assault, sequela

This code signifies a long-term health condition or complication resulting from an intentional act of poisoning by a drug, medicament, or biological substance. The original poisoning was inflicted by another person with intent to harm, and the patient is now experiencing residual effects or chronic issues directly attributable to that past event.

Apply this code when documenting a current health problem that is a direct consequence of a past assault by poisoning with a non-specified drug, medication, or biological agent. This is used for conditions that are permanent, chronic, or require ongoing treatment due to the initial poisoning event, long after the acute phase has passed.

• Always sequence this sequela code after the code for the specific condition or symptom being treated.
• Ensure documentation clearly links the current condition to a past poisoning assault.
• Do not use for acute poisoning events; this code is exclusively for residual effects.