2026 ICD-10-CM Diagnosis Code K56.2Volvulus

ICD-10-CM Codes›K00–K95›K55-K64›K56

ICD-10-CM K56.2
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K56.2 is a billable ICD-10-CM diagnosis code for volvulus. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 388 through 390. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Intestinal obstruction and ileus.

Code Identity

ICD-10-CM Code
K56.2
Billable Status
Yes — Valid for Submission
Code Describes
Volvulus
Short Description
Volvulus
Same as the full description in the CMS dataset.
Parent Code
K56
Paralytic ileus and intestinal obstruction without hernia

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK56Paralytic ileus and intestinal obstruction without hernia
This CodeK56.2Volvulus

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cecal volvulus
  • Congenital volvulus
  • Entrapment of intestine in epiploic foramen
  • Entrapment of intestine in fracture
  • Entrapment of intestine in gastrosplenic ligament
  • Entrapment of intestine in pelvic fracture
  • Entrapment of intestine in spinal fracture
  • Ileo-sigmoid knotting
  • Intestinal entrapment
  • Intestinal volvulus
  • Malrotation of intestine with midgut volvulus
  • Obstruction of colon
  • Omental torsion
  • Sigmoid volvulus
  • Strangulated omentum
  • Strangulation obstruction of intestine
  • Strangulation of colon
  • Strangulation of intestine
  • Strangulation of small intestine
  • Torsion of colon
  • Torsion of greater omentum
  • Torsion of intestine
  • Torsion of the root of the mesentery
  • Volvulus of colon
  • Volvulus of jejunum
  • Volvulus of large intestine
  • Volvulus of small intestine
  • Volvulus of the ileocecum

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Strangulation of colon or intestine
  • Torsion of colon or intestine
  • Twist of colon or intestine

Type 2 Excludes

  • volvulus of duodenum K31.5

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.

    • Knot(s)
      • intestinal, syndrome (volvulus)
    • Knotting(of)
      • intestine
    • Obstruction, obstructed, obstructive
      • intestine
        • volvulus
    • Strangulation, strangulated
      • bowel or colon
    • Strangulation, strangulated
      • intestine (large) (small)
    • Strangulation, strangulated
      • mesentery
    • Strangulation, strangulated
      • omentum
    • Syndrome
      • intestinal
        • knot
    • Torsion
      • bowel, colon or intestine
    • Torsion
      • mesentery
    • Torsion
      • omentum
    • Twist, twisted
      • bowel, colon or intestine
    • Twist, twisted
      • mesentery
    • Twist, twisted
      • omentum
    • Volvulus(bowel) (colon) (intestine)
    • Volvulus(bowel) (colon) (intestine)
      • with perforation

Clinical ClassificationClinical

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

CCSR DIG012
Intestinal obstruction and ileus
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intestinal Volvulus

    a twisting in the intestine (intestines) that can cause intestinal obstruction.

  • Intestinal Volvulus

    twisting of a loop of bowel that results in intestinal obstruction.

Patient EducationClinical

Intestinal Obstruction

An intestinal obstruction occurs when food or stool cannot move through the intestines. The obstruction can be complete or partial. There are many causes. The most common are adhesions, hernias, cancers, and certain medicines.

Read the full article at MedlinePlus

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

Convert K56.2 to ICD-9-CMHistory

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

ICD-9-CM
560.2 Volvulus of 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K56.2Overview

Is K56.2 (Paralytic ileus and intestinal obstruction without hernia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report volvulus on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K56.2 group to?

When volvulus is the principal diagnosis on an inpatient stay, it groups to MS-DRG 388, 389, 390, with relative weights from 0.5440 to 1.4768 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K56.2?

Under the General Equivalence Mappings, volvulus converts to ICD-9-CM 560.2 (volvulus of intestine). 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.