2026 ICD-10-CM Diagnosis Code K45.0Other specified abdominal hernia with obstruction, without gangrene

ICD-10-CM Codes›K00–K95›K40-K46›K45

ICD-10-CM K45.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K45.0 is a billable ICD-10-CM diagnosis code for other specified abdominal hernia with obstruction, without gangrene. 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 Abdominal hernia and Intestinal obstruction and ileus.

Code Identity

ICD-10-CM Code
K45.0
Billable Status
Yes — Valid for Submission
Code Describes
Other specified abdominal hernia with obstruction, without gangrene
Short Description
Oth abdominal hernia with obstruction, without gangrene
Parent Code
K45
Other abdominal hernia

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK40-K46Hernia
CategoryK45Other abdominal hernia
This CodeK45.0Other specified abdominal hernia with obstruction, without gangrene

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Gluteal hernia
  • Hernia through lesser sciatic foramen
  • Irreducible gluteal hernia
  • Irreducible intra-abdominal hernia
  • Irreducible ischiorectal hernia
  • Irreducible lumbar hernia
  • Irreducible obturator hernia
  • Irreducible perineal hernia
  • Irreducible sciatic hernia
  • Ischiatic hernia
  • Ischiatic hernia with obstruction
  • Ischiorectal hernia
  • Lumbar hernia
  • Lumbar hernia with obstruction
  • Obstructed gluteal hernia
  • Obstructed internal hernia
  • Obstructed ischiorectal hernia
  • Obstructed perineal hernia
  • Obturator hernia
  • Obturator hernia with obstruction
  • Posterior perineal hernia
  • Retroperitoneal hernia
  • Retroperitoneal hernia - irreducible
  • Retroperitoneal hernia with obstruction

Tabular List NotesGuidance

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

Inclusion Terms

  • Other specified abdominal hernia causing obstruction
  • Other specified incarcerated abdominal hernia
  • Other specified irreducible abdominal hernia
  • Other specified strangulated abdominal hernia

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.

    • Hernia, hernial(acquired) (recurrent)
      • abdomen, abdominal
        • specified site NEC
          • with
            • obstruction

Clinical ClassificationClinical

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

CCSR DIG010
Abdominal hernia
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR DIG012
Intestinal obstruction and ileus
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Abdominal Hernia

    the protrusion of abdominal contents through a congenital or acquired defect in the abdominal wall.

Patient EducationClinical

Hernia

A hernia happens when part of an internal organ or tissue bulges through a weak area of muscle. Most hernias are in the abdomen.

Read the full article at MedlinePlus

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

Convert K45.0 to ICD-9-CMHistory

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

ICD-9-CM
552.8 Hernia, site NEC w obstr
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 K45.0Overview

Is K45.0 (Other abdominal hernia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified abdominal hernia with obstruction, without gangrene on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K45.0 group to?

When other specified abdominal hernia with obstruction, without gangrene 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 K45.0?

Under the General Equivalence Mappings, other specified abdominal hernia with obstruction, without gangrene converts to ICD-9-CM 552.8 (hernia, site NEC w obstr). 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.