Contact with other specified machinery, subsequent encounter

This code indicates an injury or adverse effect resulting from contact with a type of machinery not specifically categorized elsewhere, occurring during a follow-up visit for the initial injury. It signifies that the patient is receiving ongoing care for a previously sustained injury caused by an unspecified mechanical device.

Apply this code when a patient presents for follow-up treatment, such as wound care, physical therapy, or medication management, for an injury sustained from contact with machinery like a printing press, industrial mixer, or other non-powered hand tools. This code is appropriate for subsequent encounters after the initial treatment of the injury.

• Ensure the encounter is for follow-up care, not the initial treatment of the injury.
• Confirm that the machinery involved is not specifically classified by other W31 codes (e.g., agricultural machinery, woodworking machinery).
• Always pair this external cause code with a primary diagnosis code describing the actual injury sustained.