Assault by unspecified sharp object, subsequent encounter

This code signifies an injury sustained from an assault involving a sharp object where the specific type of sharp object is not documented. The "D" seventh character indicates that this is a subsequent encounter, meaning the patient is receiving follow-up care for the initial injury, such as wound care, cast changes, or medication adjustments.

This code is appropriate for documenting ongoing treatment for injuries resulting from an assault with an unknown sharp object. Examples include follow-up appointments for a stab wound where the weapon was never identified, or subsequent visits for a laceration from an unspecified cutting instrument during an assault. It should be used after the initial encounter for the acute injury has been coded.

• Ensure documentation clearly states the injury is due to an assault and the sharp object is unspecified.
• The "D" seventh character is crucial for subsequent encounters; do not use "A" (initial) or "S" (sequela) for this scenario.
• Always code the specific injury (e.g., laceration, puncture wound) first, followed by this external cause code.