2027 ICD-10-CM Diagnosis Code K63.81Dieulafoy lesion of intestine

ICD-10-CM Codes›K00–K95›K55-K64›K63

ICD-10-CM K63.81
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K63.81 is a billable ICD-10-CM diagnosis code for dieulafoy lesion of intestine. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 393 through 395. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 73 closely related codes. Coders also document this condition as dieulafoy lesion of small intestine. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified gastrointestinal disorders.

Code Identity

ICD-10-CM Code
K63.81
Billable Status
Yes — Valid for Submission
Code Describes
Dieulafoy lesion of intestine
Short Description
Dieulafoy lesion of intestine
Same as the full description in the CMS dataset.
Parent Code
K63.8
Other specified diseases of intestine

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK63Other diseases of intestine
This CodeK63.81Dieulafoy lesion of intestine

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Dieulafoy lesion of small intestine
  • Dieulafoy's vascular malformation
  • Dieulafoy's vascular malformation of intestine

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K63.81: its own notes plus those printed at Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On K63.81 itself
  • Dieulafoy lesion of stomach and duodenum (K31.82)
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K63.81, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming K63.81: its condition is not part of those codes, and both may be reported when the patient has both.

  • K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
    Dieulafoy lesion of intestine (K63.81)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DIG025
Other specified and unspecified gastrointestinal disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Colonic Diseases

Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K63.81 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
569.86 Dieulafoy les, intestine
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K63.81Overview

What is the ICD-10 code for dieulafoy lesion of intestine?

The ICD-10-CM code for dieulafoy lesion of intestine is K63.81 (sometimes written as K6381). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K63.81 (Other specified diseases of intestine) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dieulafoy lesion of intestine on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K63.81 group to?

When dieulafoy lesion of intestine is the principal diagnosis on an inpatient stay, it groups to MS-DRG 394, 395, 393, with relative weights from 0.6379 to 1.5877 depending on complications. Higher weights mean higher Medicare reimbursement.

Is K63.81 a CC or MCC?

CMS lists K63.81 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 73 closely related codes in its exclusion list.

What is the ICD-9 equivalent of K63.81?

Under the General Equivalence Mappings, dieulafoy lesion of intestine converts to ICD-9-CM 569.86 (dieulafoy les, intestine). The mapping is a direct match.