Toxic effect of rattlesnake venom, self-harm, subs

This code signifies a patient presenting for follow-up care or ongoing treatment after intentionally self-administering rattlesnake venom. This could involve complications from the initial poisoning, such as tissue necrosis, coagulopathy, or organ damage, that require continued medical management. The "subsequent encounter" indicates that the initial acute treatment for the poisoning has already occurred.

Use this code when documenting care for a patient who previously attempted self-harm by injecting or otherwise exposing themselves to rattlesnake venom and is now receiving ongoing care. This includes visits for wound care, monitoring of organ function, management of long-term complications, or mental health follow-up related to the self-harm attempt. Do not use for the initial acute presentation.

• Ensure documentation clearly states the intentional nature of the venom exposure.
• This code is for subsequent encounters; use the appropriate initial encounter code for the acute phase.
• Always code any associated mental health diagnoses, such as depression or suicidal ideation, in addition to this code.