Toxic effect of venom of brown recluse spider, undet, subs

This code signifies a harmful reaction to the venom of a brown recluse spider where the intent (accidental or intentional) of the exposure is not documented. It is used for encounters following the initial treatment of the spider bite, indicating ongoing care for the toxic effects.

Apply this code when a patient presents for follow-up care, such as wound checks, debridement, or management of persistent symptoms, related to a brown recluse spider bite. The documentation must clearly state that the encounter is subsequent and the circumstances of the bite are unknown or unspecified.

• Ensure documentation specifies "undetermined" intent for the toxic effect.
• Confirm the encounter is for ongoing treatment, not the initial presentation.
• Pair with codes for specific symptoms or complications of the envenomation if applicable.