Enterocutaneous fistula: between the intestine and the skin surface, namely from the duodenum or the jejunum or the ileum. This definition excludes the fistulas arising from the colon or the appendix. Gastric fistula: from the stomach to the skin surface
(K38.3) Fistula of appendix
(K60) Anal and rectal fissures and fistulas
(K60.3) Anal fistula
(K60.5) Anorectal fistula (fecal fistula, fistula-in-ano): connecting the rectum or other anorectal area to the skin surface. This results in abnormal discharge of feces through an opening other than the anus. (K63.2) Fistula of intestine
Enteroenteral fistula: between two parts of the intestine
(K82.3) Fistula of gallbladder
(K83.3) Fistula of bile duct
Biliary fistula: connecting the bile ducts to the skin surface, often caused by gallbladder surgery
Pancreatic fistula: between the pancreas and the exterior via the abdominal wall

M: Diseases of the musculoskeletal system and connective tissue
(M25.1) Fistula of joint

N: Diseases of the urogenital system
(N32.1) Vesicointestinal fistula
(N36.0) Urethral fistula
Innora:between the prostatic utricle and the outside of the body
(N64.0) Fistula of nipple
(N82) Fistulae involving female genital tract / Obstetric fistula
(N82.0) Vesicovaginal fistula: between the bladder and the vagina
(N82.1) Other female urinary-genital tract fistulae
Cervical fistula: abnormal opening in the cervix
(N82.2) Fistula of vagina to small intestine
Enterovaginal fistula: between the intestine and the vagina
(N82.3) Fistula of vagina to large intestine
Rectovaginal: between the rectum and the vagina
(N82.4) Other female intestinal-genital tract fistulae
(N82.5) Female genital tract-skin fistulae
(N82.8) Other female genital tract fistulae
(N82.9) Female genital tract fistula, unspecified

Q: Congenital malformations, deformations and chromosomal abnormalities
(Q18.0) Sinus, fistula and cyst of branchial cleft
Congenital preauricular fistula: A small pit in front of the ear.
A persistent cloaca is a symptom of a complex anorectal congenital disorder, in which the rectum, vagina, and urinary tract meet and fuse, creating a cloaca, a single common channel. Signs and symptoms
Cloacas appear in a wide spectrum of variation in females born with the malformation. The single orifice, called a common channel, may occur varying in length from 1 to 10 cm. The length of the common channel can be used to judge prognostic outcomes and technical challenges during surgical repair. A common channel less than 3 cm in length usually has good sphincter muscles and a well-developed sacrum. Diagnosis
Diagnosis of a female with cloaca should be suspected in a female born with an imperforate anus and small looking genitalia. The diagnosis can be made clinically. Failure to identify a cloaca as being present in a newborn may be dangerous, as more than 90% have associated urological problems. The goal for treatment of a female born with cloaca is to achieve bowel control, urinary control, and sexual function, which includes menstruation, sexual intercourse, and possibly pregnancy. Cloacas probably occur in 1 in 20,000 live births. Treatment
The prognostic outcomes for this type of cloaca are good for bowel control and urinary function. The surgical repair for this type of cloaca can usually be done by performing posterior sagittal approach without opening of the abdomen.