ICD-10 Diagnosis Code M25.18

Fistula, other specified site

Diagnosis Code M25.18

ICD-10: M25.18
Short Description: Fistula, other specified site
Long Description: Fistula, other specified site
This is the 2017 version of the ICD-10-CM diagnosis code M25.18

Code Classification
  • Diseases of the musculoskeletal system and connective tissue
    • Other joint disorders (M20-M25)
      • Other joint disorder, not elsewhere classified (M25)

Information for Patients


A fistula is an abnormal connection between two parts inside of the body. Fistulas may develop between different organs, such as between the esophagus and the windpipe or the bowel and the vagina. They can also develop between two blood vessels, such as between an artery and a vein or between two arteries.

Some people are born with a fistula. Other common causes of fistulas include

  • Complications from surgery
  • Injury
  • Infection
  • Diseases, such as Crohn's disease or ulcerative colitis

Treatment depends on the cause of the fistula, where it is, and how bad it is. Some fistulas will close on their own. In some cases, you may need antibiotics and/or surgery.

  • Fistula
  • Gastrointestinal fistula

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