2025 ICD-10-CM code T63.41

Toxic effect of venom of centipedes and venomous millipedes.

Use secondary code(s) from Chapter 20, External causes of morbidity (V01-Y99), to indicate the cause of the injury. For injuries with undetermined intent, use appropriate 7th character extensions to specify the encounter type (initial encounter, subsequent encounter, or sequela).

Medical necessity is established by the clinical findings that support the diagnosis of a toxic effect resulting from a centipede or millipede bite/sting. The documentation should clearly indicate the severity of the reaction, which justifies the medical care provided.

The provider must document the clinical findings that support the diagnosis of toxic effect from the venom of centipedes and venomous millipedes. This includes the characteristics of the bite or sting, local and systemic reactions, vital signs, and diagnostic test results.

In simple words: Exposure to and toxic effect of venom of centipedes and venomous millipedes.

Toxic effect of venom of centipedes and venomous millipedes.

Example 1: A patient presents to the emergency department after being bitten by a centipede while gardening. The patient exhibits localized pain, swelling, and redness at the bite site. The provider diagnoses the patient with a toxic effect of venom of centipedes and venomous millipedes., A child is playing outdoors and gets stung by a venomous millipede. The child experiences pain, itching, and a burning sensation at the sting site, as well as mild systemic symptoms such as nausea and dizziness. The provider documents the toxic effect of venom of venomous millipedes., A hiker reports being bitten by an unidentified arthropod. They develop localized swelling, pain, and lymphangitis at the affected site. After careful examination, the physician determines the bite was from a venomous millipede, and codes the case as T63.41.

The documentation should include the following:* Cause of the injury (centipede or millipede bite/sting).* Location of the bite/sting.* Signs and symptoms (local and systemic reactions).* Treatment provided.

** For cases involving envenomation or poisoning, consider using additional codes to specify the type of venom or toxin involved, if known. If a foreign body is retained from the incident (e.g., a stinger or fang), use additional code Z18.-.

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