ICD-10 Diagnosis Code N99.4

Postprocedural pelvic peritoneal adhesions

Diagnosis Code N99.4

ICD-10: N99.4
Short Description: Postprocedural pelvic peritoneal adhesions
Long Description: Postprocedural pelvic peritoneal adhesions
This is the 2017 version of the ICD-10-CM diagnosis code N99.4

Code Classification
  • Diseases of the genitourinary system
    • Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified (N99)
      • Intraop and postproc comp and disorders of GU sys, NEC (N99)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code N99.4 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Postprocedural pelvic peritoneal adhesions

Index of Diseases and Injuries
References found for the code N99.4 in the Index of Diseases and Injuries:

Information for Patients


Also called: Abdominal adhesions

Adhesions are bands of scar-like tissue. Normally, internal tissues and organs have slippery surfaces so they can shift easily as the body moves. Adhesions cause tissues and organs to stick together. They might connect the loops of the intestines to each other, to nearby organs, or to the wall of the abdomen. They can pull sections of the intestines out of place. This may block food from passing through the intestine.

Adhesions can occur anywhere in the body. But they often form after surgery on the abdomen. Almost everyone who has surgery on the abdomen gets adhesions. Some adhesions don't cause any problems. But when they partly or completely block the intestines, they cause symptoms such as

  • Severe abdominal pain or cramping
  • Vomiting
  • Bloating
  • An inability to pass gas
  • Constipation

Adhesions can sometimes cause infertility in women by preventing fertilized eggs from reaching the uterus.

No tests are available to detect adhesions. Doctors usually find them during surgery to diagnose other problems.

Some adhesions go away by themselves. If they partly block your intestines, a diet low in fiber can allow food to move easily through the affected area. If you have a complete intestinal obstruction, it is life threatening. You should get immediate medical attention and may need surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Abdominal Adhesions - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • Adhesion

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Peritoneal Disorders

Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen. A liquid, peritoneal fluid, lubricates the surface of this tissue.

Disorders of the peritoneum are not common. They include

  • Peritonitis - an inflammation of the peritoneum
  • Cancer
  • Complications from peritoneal dialysis

Your doctor may use imaging tests or lab tests to analyze the peritoneal fluid to diagnose the problem. Treatment of peritoneal disorders depends on the cause.

  • Peritonitis
  • Peritonitis - secondary
  • Peritonitis - spontaneous
  • Retroperitoneal inflammation

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