Vesical fistula, not elsewhere classified

This code represents an abnormal connection or passageway (fistula) involving the urinary bladder that is not specifically classified elsewhere. These fistulas can connect the bladder to other organs or the skin, leading to urine leakage or recurrent infections. It excludes fistulas directly involving the female genital tract.

Use this code for bladder fistulas where the connection is to an organ other than the female genital tract (e.g., enterovesical, colovesical, cutaneovesical, or rectovesical fistulas). Documentation should clearly identify the bladder as one of the involved organs and specify the other organ(s) or body surface forming the abnormal tract.

• Always specify the type of fistula if known (e.g., enterovesical, colovesical) using an additional code if available, or by documenting the specific organs involved.
• Carefully review documentation to ensure the fistula does not involve the female genital tract, as those are coded to N82.0-N82.1.
• Consider an external cause code if the fistula is iatrogenic or due to trauma.