Toxic effect of venom of caterpillars, undetermined, sequela

This code signifies a long-term or late-occurring health problem resulting from exposure to caterpillar venom. The original exposure and its acute effects have resolved, but residual symptoms or conditions persist due to the toxic effect of the venom. The specific type of caterpillar is not documented.

Use this code when a patient presents with a chronic condition or sequela directly attributed to a past caterpillar envenomation, and the initial acute phase of the toxic effect has passed. This applies when the specific species of caterpillar is unknown or not specified in the medical record. Examples include persistent skin lesions, neurological deficits, or chronic pain syndromes linked to the prior venom exposure.

• Requires a seventh character "S" to indicate sequela, meaning the residual effect of a past injury or disease.
• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic dermatitis, neuropathy).
• Do not use for acute toxic effects; refer to codes with 7th characters A or D for initial or subsequent encounters, respectively.