Toxic effect of venom of N & S American snake, undet, subs

This code signifies a toxic reaction resulting from a bite by a North or South American snake, excluding rattlesnakes, coral snakes, and other specified types, where the intent (accidental vs. intentional self-harm) of the exposure is not documented. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for the sequelae of the initial envenomation, such as wound care, monitoring for delayed effects, or management of complications.

Apply this code when a patient presents for ongoing treatment of symptoms or complications stemming from an unspecified North or South American snakebite. This includes scenarios where the initial acute care has been rendered, and the patient is now being managed for lingering effects, infection, or tissue damage. It is appropriate when the medical record does not specify whether the exposure was accidental or intentional.

• Ensure the documentation clearly indicates a "subsequent encounter" for the snakebite.
• Verify that the snake is identified as a North or South American species, but not one with a more specific code available (e.g., rattlesnake).
• Only use the "undetermined" intent character when the medical record explicitly lacks information regarding the circumstances of the bite.