Toxic effect of venom of venomous lizard, undetermined, init

This code signifies the adverse systemic effects resulting from envenomation by a venomous lizard other than a Gila monster, where the specific type of lizard is not documented. It indicates the patient is in the initial phase of treatment for this toxic exposure.

Apply this code when a patient presents with symptoms of envenomation (e.g., pain, swelling, nausea, systemic reactions) following a bite from an unidentified venomous lizard, excluding Gila monsters. This is appropriate for the initial visit or encounter where the patient is actively being treated for the acute effects.

• Requires an external cause code (e.g., W59.21XA for bite by other venomous lizard) to fully describe the event.
• Do not use if the venomous lizard is identified as a Gila monster (use T63.11-).
• The 7th character "A" indicates an initial encounter for active treatment of the toxic effect.