ICD-10 Diagnosis Code K85.9

Acute pancreatitis, unspecified

Diagnosis Code K85.9

ICD-10: K85.9
Short Description: Acute pancreatitis, unspecified
Long Description: Acute pancreatitis, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code K85.9

Code Classification
  • Diseases of the digestive system
    • Disorders of gallbladder, biliary tract and pancreas (K80-K87)
      • Acute pancreatitis (K85)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code K85.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


  • Abscess of pancreas
  • Acute hemorrhagic pancreatitis
  • Acute necrosis of pancreas
  • Acute necrotizing pancreatitis
  • Acute pancreatitis
  • Acute pancreatitis due to infection
  • Acute recurrent pancreatitis
  • Acute suppurative pancreatitis
  • Aplastic anemia associated with pancreatitis
  • Apoplectic pancreatitis
  • Fat necrosis of subcutaneous tissue
  • Hemorrhage of pancreas
  • Infected pancreatic necrosis
  • Infectious pancreatitis
  • Inflammation of pancreas caused by alcohol
  • Necrosis of pancreas
  • Necrosis of pancreas
  • Necrosis of subcutaneous tissue
  • Nodular fat necrosis
  • Painless pancreatitis
  • Pancreatic and peripancreatic necrosis
  • Pancreatic and peripancreatic necrosis
  • Pancreatic collection
  • Pancreatic collection
  • Pancreatitis
  • Pancytopenia
  • Pancytopenia with pancreatitis
  • Phlegmon of pancreas
  • Pleural effusion associated with pancreatitis
  • Post-endoscopic retrograde cholangiopancreatography acute pancreatitis
  • Recurrent pancreatitis
  • Secondary aplastic anemia
  • Subacute pancreatitis
  • Subcutaneous nodular fat necrosis in pancreatitis
  • Suppurative pancreatitis

Index of Diseases and Injuries
References found for the code K85.9 in the Index of Diseases and Injuries:

Replaced Code Additional informationCallout TooltipReplaced Code
The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2016. This codes was replaced for the FY 2017 (October 1, 2016-September 30, 2017).

This code was replaced in the 2017 ICD-10 code set with the code(s) listed below.
  • K85.90 - Acute pancreatitis without necrosis or infection, unsp
  • K85.91 - Acute pancreatitis with uninfected necrosis, unspecified
  • K85.92 - Acute pancreatitis with infected necrosis, unspecified

Information for Patients


The pancreas is a large gland behind the stomach and close to the first part of the small intestine. It secretes digestive juices into the small intestine through a tube called the pancreatic duct. The pancreas also releases the hormones insulin and glucagon into the bloodstream.

Pancreatitis is inflammation of the pancreas. It happens when digestive enzymes start digesting the pancreas itself. Pancreatitis can be acute or chronic. Either form is serious and can lead to complications.

Acute pancreatitis occurs suddenly and usually goes away in a few days with treatment. It is often caused by gallstones. Common symptoms are severe pain in the upper abdomen, nausea, and vomiting. Treatment is usually a few days in the hospital for intravenous (IV) fluids, antibiotics, and medicines to relieve pain.

Chronic pancreatitis does not heal or improve. It gets worse over time and leads to permanent damage. The most common cause is heavy alcohol use. Other causes include cystic fibrosis and other inherited disorders, high levels of calcium or fats in the blood, some medicines, and autoimmune conditions. Symptoms include nausea, vomiting, weight loss, and oily stools. Treatment may also be a few days in the hospital for intravenous (IV) fluids, medicines to relieve pain, and nutritional support. After that, you may need to start taking enzymes and eat a special diet. It is also important to not smoke or drink alcohol.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Acute pancreatitis
  • Amylase - blood
  • Chronic pancreatitis
  • ERCP
  • Lipase test
  • Pancreatitis - children
  • Pancreatitis - discharge

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