2026 ICD-10-CM Diagnosis Code D13.1Benign neoplasm of stomach
ICD-10-CM Codes›C00–D49›D10-D36›D13
- Billable — Valid for Submission
- Not Chronic
D13.1 is a billable ICD-10-CM diagnosis code for benign neoplasm of stomach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Benign adenomatous polyp of stomach
- Benign epithelial neoplasm of stomach
- Benign gastric adenoma
- Benign intestinal-type gastric adenoma
- Benign mesenchymoma of stomach
- Benign neoplasm of body of stomach
- Benign neoplasm of cardia of stomach
- Benign neoplasm of esophagus, stomach and/or duodenum
- Benign neoplasm of fundus of stomach
- Benign neoplasm of greater curvature of stomach
- Benign neoplasm of lesser curvature of stomach
- Benign neoplasm of pyloric antrum
- Benign neoplasm of pylorus
- Benign neoplasm of stomach
- Benign tubular adenoma of stomach
- Gastric polyp
- Gastroduodenal disorder
- Hamartoma of stomach
- Hyperplastic adenomatous polyp of stomach
- Leiomyoma of stomach
- Low grade glandular intraepithelial neoplasia of stomach
- Tubular adenoma
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- benign carcinoid tumor of the stomach D3A.092
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- adenomatous - D13.1
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Polyp, polypus
- stomach
- adenomatous
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Esophagogastric Junction
the area covering the terminal portion of esophagus and the beginning of stomach at the cardiac orifice.Pyloric Stenosis
narrowing of the pyloric canal with varied etiology. a common form is due to muscle hypertrophy (pyloric stenosis, hypertrophic) seen in infants.Pylorus
the region of the stomach at the junction with the duodenum. it is marked by the thickening of circular muscle layers forming the pyloric sphincter to control the opening and closure of the lumen.Bariatric Surgery
surgical procedures aimed at affecting metabolism and producing major weight reduction in patients with morbid obesity.Diverticulosis, Stomach
a pathological condition characterized by the presence of a number of gastric diverticula in the stomach.Diverticulum, Stomach
saccular, outward protrusion of all or a portion of the wall of the stomach.Gastric Absorption
uptake of substances via the stomach.Gastric Antral Vascular Ectasia
a distinct vascular lesion in the pyloric antrum that is characterized by tortuous dilated blood vessels (ectasia) radiating outward from the pylorus. the vessel pattern resembles the stripes on the surface of a watermelon. this lesion causes both acute and chronic gastrointestinal hemorrhage.Gastric Dilatation
abnormal distention of the stomach due to accumulation of gastric contents that may reach 10 to 15 liters. gastric dilatation may be the result of gastric outlet obstruction; ileus; gastroparesis; or denervation.Gastric Fistula
abnormal passage communicating with the stomach.Gastric Stump
that portion of the stomach remaining after gastric surgery, usually gastrectomy or gastroenterostomy for cancer of the stomach or peptic ulcer. it is a common site of cancer referred to as stump cancer or carcinoma of the gastric stump.Gastrointestinal Contents
the contents included in all or any segment of the gastrointestinal tract.Receptor-Like Protein Tyrosine Phosphatases, Class 3
a subclass of receptor-like protein tryosine phosphatases that contain a single cytosolic protein tyrosine phosphate domain and multiple extracellular fibronectin iii-like domains.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.Stomach Diseases
pathological processes involving the stomach.Stomach Neoplasms
tumors or cancer of the stomach.Stomach Rupture
bursting of the stomach.Stomach Ulcer
ulceration of the gastric mucosa due to contact with gastric juice. it is often associated with helicobacter pylori infection or consumption of nonsteroidal anti-inflammatory drugs (nsaids).Stomach Volvulus
twisting of the stomach that may result in gastric ischemia and gastric outlet obstruction. it is often associated with diaphragmatic hernia.Stomach, Avian
a component of the digestive system of birds which consists of the gizzard and proventriculus.Stomach, Ruminant
a component of the digestive system of ruminants which consists of the abomasum; omasum; reticulum; and rumen.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| antrum (Highmore) (maxillary) › pyloric | C16.3 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| cardia (gastric) | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| cardiac orifice (stomach) | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| cardio-esophageal junction | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| cardio-esophagus | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| corpus › gastric | C16.2 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| esophagogastric junction | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| fundus | C16.1 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| fundus › stomach | C16.1 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| gastroesophageal junction | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| junction › cardioesophageal | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| junction › esophagogastric | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| junction › gastroesophageal | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| prepylorus | C16.4 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| pyloric | C16.3 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| pyloric › antrum | C16.3 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| pyloric › canal | C16.4 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| pylorus | C16.4 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach | C16.9 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › antrum (pyloric) | C16.3 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › body | C16.2 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › cardia | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › cardiac orifice | C16.0 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › corpus | C16.2 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › fundus | C16.1 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › greater curvature NEC | C16.6 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › lesser curvature NEC | C16.5 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › prepylorus | C16.4 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › pylorus | C16.4 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › wall NEC | C16.9 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › wall NEC › anterior NEC | C16.8 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
| stomach › wall NEC › posterior NEC | C16.8 | C78.89 | D00.2 | D13.1 | D37.1 | D49.0 |
Patient EducationClinical
Benign Tumors
Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert D13.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D13.1Overview
Is D13.1 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report benign neoplasm of stomach on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does D13.1 group to?
When benign neoplasm of stomach is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of D13.1?
Under the General Equivalence Mappings, benign neoplasm of stomach converts to ICD-9-CM 211.1 (benign neoplasm stomach). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
