2026 ICD-10-CM Diagnosis Code K31.82Dieulafoy lesion (hemorrhagic) of stomach and duodenum
ICD-10-CM Codes›K00–K95›K20-K31›K31
- Billable — Valid for Submission
- Not Chronic
K31.82 is a billable ICD-10-CM diagnosis code for dieulafoy lesion (hemorrhagic) of stomach and duodenum. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 377 through 379. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Gastrointestinal hemorrhage and Other specified and unspecified disorders of stomach and duodenum.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Dieulafoy lesion of small intestine
- Dieulafoy vascular malformation of duodenum
- Dieulafoy vascular malformation of stomach
- Dieulafoy's vascular malformation
- Dieulafoy's vascular malformation of intestine
- Disorder of vascular structure of duodenum
- Duodenal hemorrhage due to Dieulafoy lesion of duodenum
- Gastric hemorrhage due to Dieulafoy lesion of stomach
- Lip ulcer
- Lip ulcer due to caliber persistent artery
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 2 Excludes
- Dieulafoy lesion of intestine K63.81
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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Dieulafoy lesion(hemorrhagic)
- duodenum
- Dieulafoy lesion(hemorrhagic)
- stomach
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Gastrointestinal Bleeding
Your digestive or gastrointestinal (GI) tract includes the esophagus, stomach, small intestine, large intestine or colon, rectum, and anus. Bleeding can come from any of these areas. The amount of bleeding can be so small that only a lab test can find it.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K31.82 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K31.82Overview
Is K31.82 (Other specified diseases of stomach and duodenum) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report dieulafoy lesion (hemorrhagic) of stomach and duodenum on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K31.82 group to?
When dieulafoy lesion (hemorrhagic) of stomach and duodenum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 377, 378, 379, with relative weights from 0.6304 to 1.8280 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of K31.82?
Under the General Equivalence Mappings, dieulafoy lesion (hemorrhagic) of stomach and duodenum converts to ICD-9-CM 537.84 (dieulafoy les,stom&duod). The mapping is a direct match.
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.
