Toxic effect of venom of Australian snake, undet, subs

This code signifies a harmful reaction to the venom of an Australian snake species not specifically classified elsewhere, where the intent (accidental, intentional self-harm, assault, or undetermined) of the exposure is unknown. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for the toxic effects after the initial treatment phase.

Apply this code when a patient presents for ongoing management of symptoms or complications arising from a bite by an unspecified Australian snake, and the circumstances surrounding the bite are not documented as accidental, intentional, or assault. This would include follow-up visits for wound care, monitoring for delayed systemic effects, or managing persistent neurological or hematological issues.

• Ensure documentation clearly states the encounter is for follow-up care, not initial treatment.
• Verify the snake is identified as Australian but not a more specific type (e.g., brown snake, tiger snake) that has its own code.
• Confirm the intent of the exposure is explicitly noted as "undetermined" or not specified in the medical record.