2027 ICD-10-CM Diagnosis Code I86.4Gastric varices

ICD-10-CM Codes›I00–I99›I80-I89›I86

ICD-10-CM I86.4
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I86.4 is a billable ICD-10-CM diagnosis code for gastric varices. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 299 through 301. Coders also document this condition as bleeding gastric varices. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified diseases of veins and lymphatics.

Code Identity

ICD-10-CM Code
I86.4
Billable Status
Yes — Valid for Submission
Code Describes
Gastric varices
Short Description
Gastric varices
Same as the full description in the CMS dataset.
Parent Code
I86
Varicose veins of other sites

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI80-I89Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
CategoryI86Varicose veins of other sites
This CodeI86.4Gastric varices

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bleeding gastric varices
  • Dilatation of stomach
  • Gastric varices
  • Gastric varices without bleeding
  • Gastroesophageal varices

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I86.4: its own notes plus those printed at I86 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From I86 Varicose veins of other sites applies to 6 codes
  • varicose veins of unspecified site (I83.9-)

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.

From I86 Varicose veins of other sites applies to 6 codes
From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 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)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

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

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 CIR039
Other specified diseases of veins and lymphatics
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Gastric Varices

    abnormal distension of gastric veins.

Patient EducationClinical

Stomach Disorders

Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine.

Read the full article at MedlinePlus

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

Convert I86.4 to ICD-9-CMHistory

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

ICD-9-CM
456.8 Varices of other sites
Approximate The match is approximate rather than exact.

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 I86.4Overview

What is the ICD-10 code for gastric varices?

The ICD-10-CM code for gastric varices is I86.4 (sometimes written as I864). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is I86.4 (Varicose veins of other sites) a billable code?

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

What MS-DRG does I86.4 group to?

When gastric varices is the principal diagnosis on an inpatient stay, it groups to MS-DRG 301, 300, 299, with relative weights from 0.7132 to 1.5840 depending on complications. Higher weights mean higher Medicare reimbursement.

Can I86.4 be reported with a code from I83.9?

Not as a rule. The Excludes1 note at I86, which applies to I86.4, lists "varicose veins of unspecified site (I83.9-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

What is the ICD-9 equivalent of I86.4?

Under the General Equivalence Mappings, gastric varices converts to ICD-9-CM 456.8 (varices of other sites). The mapping is approximate, so confirm the match fits the documentation.