ICD-10 Diagnosis Code K91.1

Postgastric surgery syndromes

Diagnosis Code K91.1

ICD-10: K91.1
Short Description: Postgastric surgery syndromes
Long Description: Postgastric surgery syndromes
This is the 2017 version of the ICD-10-CM diagnosis code K91.1

Code Classification
  • Diseases of the digestive system
    • Other diseases of the digestive system (K90-K95)
      • Intraop and postproc comp and disorders of dgstv sys, NEC (K91)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code K91.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
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.
  • 564.2 - Postgastric surgery synd

  • Alimentary hypoglycemia
  • Diarrhea after gastrointestinal tract surgery
  • Early dumping syndrome
  • Endocrine system complication of procedure
  • Familial duodenal ulcer associated with rapid gastric emptying
  • Gastric necrosis
  • Hypoglycemia
  • Late dumping syndrome
  • Non-infective diarrhea
  • Post gastrointestinal tract surgery hypoglycemia
  • Postgastric surgery syndrome
  • Postgastric surgery syndrome
  • Postgastric surgery syndrome
  • Post-vagotomy diarrhea
  • Post-vagotomy lesser curve necrosis
  • Post-vagotomy syndrome
  • Reactive hypoglycemia
  • Small stomach syndrome

Index of Diseases and Injuries
References found for the code K91.1 in the Index of Diseases and Injuries:

Information for Patients

After Surgery

Also called: Postoperative care, Recovery from surgery

After any operation, you'll have some side effects. There is usually some pain with surgery. There may also be swelling and soreness around the area that the surgeon cut. Your surgeon can tell you which side effects to expect.

There can also be complications. These are unplanned events linked to the operation. Some complications are infection, too much bleeding, reaction to anesthesia, or accidental injury. Some people have a greater risk of complications because of other medical conditions.

Your surgeon can tell you how you might feel and what you will be able to do - or not do - the first few days, weeks, or months after surgery. Some other questions to ask are

  • How long you will be in the hospital
  • What kind of supplies, equipment, and help you might need when you go home
  • When you can go back to work
  • When it is ok to start exercising again
  • Are they any other restrictions in your activities

Following your surgeon's advice can help you recover as soon as possible.

Agency for Healthcare Quality and Research

  • Bland diet
  • Deep breathing after surgery
  • Diet - clear liquid
  • Diet - full liquid
  • Getting your home ready - after the hospital
  • Indwelling catheter care
  • Post surgical pain treatment - adults
  • Self catheterization - female
  • Self catheterization - male
  • Suprapubic catheter care
  • Surgical wound care -- closed
  • Surgical wound infection - treatment
  • Urinary catheters
  • Urine drainage bags
  • Using an incentive spirometer

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Stomach Disorders

Also called: Gastric disorders

Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine.

Most people have a problem with their stomach at one time or another. Indigestion and heartburn are common problems. You can relieve some stomach problems with over-the-counter medicines and lifestyle changes, such as avoiding fatty foods or eating more slowly. Other problems like peptic ulcers or GERD require medical attention.

You should see a doctor if you have any of the following:

  • Blood when you have a bowel movement
  • Severe abdominal pain
  • Heartburn not relieved by antacids
  • Unintended weight loss
  • Ongoing vomiting or diarrhea

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Bezoar
  • Dumping Syndrome - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
  • EGD discharge
  • Gastrectomy
  • Gastritis
  • Gastroparesis
  • Pyloric stenosis
  • Stomach acid test
  • Upper GI and small bowel series

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