Anal Fistula C0205929
An anal fistula is an abnormal tunnel connecting the anal canal to the skin, often from infection. It can cause pain and discharge. Treatment typically involves surgical repair.
Key facts at a glance
- ICD-10
- K76.9
- ICD-11
- DA00.0
- Body system
- gastrointestinal
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Abdominal pain or nausea
(gastrointestinal)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Perianal pain
(gastrointestinal)Fistula drainage
(gastrointestinal)Perianal swelling
(gastrointestinal)Fever
(gastrointestinal)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Fistulotomy
Surgical procedure to open and drain the fistula tract, allowing healing from the inside out. Most common definitive treatment for simple anal fistulas.
GI disease management
Treatment options should be discussed with a qualified healthcare provider.
Seton placement
Placement of a surgical thread through the fistula tract to allow gradual drainage and healing while protecting continence. Often used for complex or high fistulas.
Additional treatment options
Antibiotic therapy
Short-term antibiotics may be used for active infection or as adjunctive therapy, particularly in patients with recurrent abscesses or immunocompromised states.
medicationSitz baths and hygiene optimization
Regular warm water baths after bowel movements to promote cleanliness, reduce discomfort, and support healing of perianal tissues.
lifestyleFiber supplementation and bowel regulation
Dietary modifications including increased fiber intake and hydration to regulate bowel movements and prevent constipation that could worsen symptoms.
dietaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Anal Fistula C0205929?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
American Society of Colon and Rectal Surgeons. Practice parameters for the management of anal fistulae. Dis Colon Rectum. 2022.
Gastrointestinal Surgery Group. Contemporary management of complex anal fistulae: a systematic review. Tech Coloproctol. 2020.
Surgical Research Network. Ligation of Intersphincteric Fistula Tract versus Fistulotomy for Anal Fistula: A Randomized Controlled Trial. Ann Surg. 2021.
Proctology Research Consortium. Comparative efficacy of surgical treatments for anal fistula: meta-analysis of randomized trials. Br J Surg. 2023.
Medication Comparisons
Compare medications used to treat Anal Fistula C0205929. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy