Other contact with other mammals, subsequent encounter

This code indicates an injury or adverse effect resulting from interaction with a mammal other than those specifically categorized (e.g., dog, cat, rat, marine mammal, livestock). This includes encounters with wild or exotic mammals not otherwise specified, where the patient is receiving follow-up care for the initial injury.

Apply this code for subsequent encounters when a patient presents for ongoing treatment, such as wound care, infection management, or physical therapy, following an initial injury from an unlisted mammal. Examples include bites, scratches, or other physical contact from animals like squirrels, raccoons, or monkeys, after the initial visit.

• Ensure this is a subsequent encounter; an initial encounter would use the 'A' seventh character.
• Always sequence this external cause code after the primary diagnosis describing the nature of the injury.
• Confirm the mammal involved is not specifically classified elsewhere in the W55 category.