Poisoning by anticoagulants, assault, subsequent encounter

This code signifies a harmful effect resulting from the intentional administration of an anticoagulant drug by another person with the intent to cause harm. The patient is experiencing ongoing care for the adverse effects of this poisoning.

Apply this code when documenting follow-up care for a patient who was deliberately poisoned with an anticoagulant. This includes scenarios such as monitoring for bleeding complications, managing reversal agents, or addressing organ damage stemming from the initial assault.

• Ensure documentation clearly specifies "assault" as the intent of the poisoning.
• Confirm the encounter is for subsequent care, not the initial treatment.
• Always code the specific anticoagulant involved if known, using an additional code from T45.5X.