Toxic effect of venom of black widow spider, acc, sequela

This code signifies a long-term or residual health problem resulting from an accidental black widow spider bite. It indicates that the acute toxic effects have resolved, but the patient continues to experience lasting symptoms or complications directly attributable to the venom exposure. These sequelae can range from chronic pain and neurological deficits to skin changes or organ damage.

Apply this code when documenting a patient presenting with persistent symptoms or conditions that are a direct consequence of a black widow spider envenomation that occurred in the past. This would include follow-up visits for chronic pain, nerve damage, or other ongoing issues clearly linked to the prior bite. It is used after the initial acute phase of the toxic effect has passed.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela being treated (e.g., chronic pain, neuropathy).
• Ensure documentation clearly links the current condition to a past black widow spider bite and specifies the accidental nature of the exposure.
• Do not use this code for the initial acute toxic reaction; use the appropriate acute toxic effect code for the initial encounter.