Other diseases of stomach and duodenum (K31)

Browse all the diagnosis codes used for other diseases of stomach and duodenum (k31). 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

Achlorhydria - A lack of HYDROCHLORIC ACID in GASTRIC JUICE despite stimulation of gastric secretion.

Gastric Fistula - Abnormal passage communicating with the STOMACH.

Gastroparesis - Chronic delayed gastric emptying. Gastroparesis may be caused by motor dysfunction or paralysis of STOMACH muscles or may be associated with other systemic diseases such as DIABETES MELLITUS.

Hypertrophy - General increase in bulk of a part or organ due to CELL ENLARGEMENT and accumulation of FLUIDS AND SECRETIONS, not due to tumor formation, nor to an increase in the number of cells (HYPERPLASIA).

Intestinal Volvulus - A twisting in the intestine (INTESTINES) that can cause INTESTINAL OBSTRUCTION.

Pyloric Stenosis - Narrowing of the pyloric canal with varied etiology. A common form is due to muscle hypertrophy (PYLORIC STENOSIS, HYPERTROPHIC) seen in infants.

Pyloric Stenosis, Hypertrophic - Narrowing of the pyloric canal due to HYPERTROPHY of the surrounding circular muscle. It is usually seen in infants or young children.

Stomach - An organ of digestion situated in the left upper quadrant of the abdomen between the termination of the ESOPHAGUS and the beginning of the DUODENUM.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

• functional disorders of stomach

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.

• diabetic gastroparesis E08.43 E09.43 E10.43 E11.43 E13.43
• diverticulum of duodenum K57.00 K57.13