2026 ICD-10-CM Diagnosis Code K45.8Other specified abdominal hernia without obstruction or gangrene

ICD-10-CM Codes›K00–K95›K40-K46›K45

ICD-10-CM K45.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K45.8 is a billable ICD-10-CM diagnosis code for other specified abdominal hernia without obstruction or 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.

Code Identity

ICD-10-CM Code
K45.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified abdominal hernia without obstruction or gangrene
Short Description
Oth abdominal hernia without obstruction or gangrene
Parent Code
K45
Other abdominal hernia

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK40-K46Hernia
CategoryK45Other abdominal hernia
This CodeK45.8Other specified abdominal hernia without obstruction or gangrene

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anterior perineal hernia
  • Cecal hernia
  • Cooper's hernia
  • Female perineal hernia
  • Foraminal hernia into epiploic foramen
  • Gluteal hernia
  • Hernia through lesser sciatic foramen
  • Inferior lumbar hernia
  • Internal hernia near ligament of Treitz
  • Intersigmoid hernia
  • Interstitial hernia
  • Ischiatic hernia
  • Ischiorectal hernia
  • Littré hernia
  • Lumbar hernia
  • Mesenteric hernia
  • Obturator hernia
  • Perineal hernia
  • Posterior perineal hernia
  • Properitoneal inguinal hernia
  • Recurrent lumbar hernia
  • Recurrent obturator hernia
  • Retrocecal hernia
  • Retroperitoneal hernia
  • Secondary hernia of abdomen
  • Superior lumbar 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

Clinical ClassificationClinical

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

CCSR DIG010
Abdominal hernia
Default principal diagnosis: inpatient Yes · outpatient Yes

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 K45.8 to ICD-9-CMHistory

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

ICD-9-CM
553.8 Hernia NEC
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 K45.8Overview

Is K45.8 (Other abdominal hernia) a billable code?

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

What MS-DRG does K45.8 group to?

When other specified abdominal hernia without obstruction or 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 K45.8?

Under the General Equivalence Mappings, other specified abdominal hernia without obstruction or gangrene converts to ICD-9-CM 553.8 (hernia NEC). 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.