Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified (K91)

Browse all the diagnosis codes used for intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified (k91). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Afferent Loop Syndrome - A complication of gastrojejunostomy (BILLROTH II PROCEDURE), a reconstructive GASTROENTEROSTOMY. It is caused by acute (complete) or chronic (intermittent) obstruction of the afferent jejunal loop due to HERNIA, intussusception, kinking, VOLVULUS, etc. It is characterized by PAIN and VOMITING of BILE-stained fluid.

Blind Loop Syndrome - A malabsorption syndrome that is associated with a blind loop in the upper SMALL INTESTINE that is characterized by the lack of peristaltic movement, stasis of INTESTINAL CONTENTS, and the overgrowth of BACTERIA. Such bacterial overgrowth interferes with BILE SALTS action, FATTY ACIDS processing, MICROVILLI integrity, and the ABSORPTION of nutrients such as VITAMIN B12 and FOLIC ACID.

Child Nutrition Disorders - Disorders caused by nutritional imbalance, either overnutrition or undernutrition, occurring in children ages 2 to 12 years.

Fetal Nutrition Disorders - Disorders caused by nutritional imbalance, either overnutrition or undernutrition, in the FETUS in utero.

Fetus - The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN.

Hepatorenal Syndrome - Functional KIDNEY FAILURE in patients with liver disease, usually LIVER CIRRHOSIS or portal hypertension (HYPERTENSION, PORTAL), and in the absence of intrinsic renal disease or kidney abnormality. It is characterized by intense renal vasculature constriction, reduced renal blood flow, OLIGURIA, and sodium retention.

Infant Nutrition Disorders - Disorders caused by nutritional imbalance, either overnutrition or undernutrition, occurring in infants ages 1 month to 24 months.

Low Anterior Resection Syndrome - Postoperative complication after removal of the RECTUM (low anterior resection surgery or resection surgery to the lower part of the COLON). It includes disordered rectum function, e.g., frequent BOWEL MOVEMENT; FECAL INCONTINENCE; and CONSTIPATION.

Malnutrition - An imbalanced nutritional status resulting from insufficient intake of nutrients to meet normal physiological requirement.

Postcholecystectomy Syndrome - Abdominal symptoms after removal of the GALLBLADDER. The common postoperative symptoms are often the same as those present before the operation, such as COLIC, bloating, NAUSEA, and VOMITING. There is pain on palpation of the right upper quadrant and sometimes JAUNDICE. The term is often used, inaccurately, to describe such postoperative symptoms not due to gallbladder removal.

Pouchitis - Acute INFLAMMATION in the INTESTINAL MUCOSA of the continent ileal reservoir (or pouch) in patients who have undergone ILEOSTOMY and restorative proctocolectomy (PROCTOCOLECTOMY, RESTORATIVE).

Protein-Energy Malnutrition - The lack of sufficient energy or protein to meet the body's metabolic demands, as a result of either an inadequate dietary intake of protein, intake of poor quality dietary protein, increased demands due to disease, or increased nutrient losses.

Severe Acute Malnutrition - Acute form of MALNUTRITION which usually affects children, characterized by a very low weight for height (below -3z scores of the median World Health Organization standards), visible severe wasting, or occurrence of nutritional EDEMA. It can be a direct or indirect cause of fatality in children suffering from DIARRHEA and PNEUMONIA. Do not confuse with starvation, a condition in which the body is not getting enough food, usually for extended periods of time.

Short Bowel Syndrome - A malabsorption syndrome resulting from extensive operative resection of the SMALL INTESTINE, the absorptive region of the GASTROINTESTINAL TRACT.

Xerostomia - Decreased salivary flow.

Instructional Notations

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

• complications of artificial opening of digestive system K94
• complications of bariatric procedures K95
• gastrojejunal ulcer K28
• postprocedural radiation retroperitoneal abscess K68.11
• radiation colitis K52.0
• radiation gastroenteritis K52.0
• radiation proctitis K62.7