Contusion of anus, sequela

This code describes the long-term or residual effects resulting from a past injury to the anus involving bruising or contusion. It indicates that the initial traumatic event has resolved, but the patient continues to experience symptoms or complications directly attributable to that original anal contusion.

This code is appropriate when documenting conditions such as chronic pain, scarring, altered sensation, or functional impairment of the anus that are a direct consequence of a previously sustained anal contusion. It should be used after the acute phase of the injury has passed and the patient is being treated for the lasting effects.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current anal condition to a past contusion.
• Do not use this code for the initial or acute treatment of an anal contusion; instead, use the acute injury code.