2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K45.8: its own notes plus those printed at K45, block K40-K46, and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From K45 Other abdominal hernia applies to 3 codes
  • abdominal hernia, specified site NEC
  • lumbar hernia
  • obturator hernia
  • pudendal hernia
  • retroperitoneal hernia
  • sciatic hernia
From Block K40-K46 Hernia applies to 45 codes
  • acquired hernia
  • congenital [except diaphragmatic or hiatus] hernia
  • recurrent hernia

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 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)

Notes

General instructions on how these codes are used.

From Block K40-K46 Hernia applies to 45 codes
  • Hernia with both gangrene and obstruction is classified to hernia with gangrene.

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K45.8, its category, or a range that includes it.

Applicable To 1

These notes mention K45.8.

  • K45.1 Other specified abdominal hernia with gangrene
    Any condition listed under K45 specified as gangrenous names K45, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming K45.8: its condition is not part of those codes, and both may be reported when the patient has both.

  • K56.7 Ileus, unspecified
    intestinal obstruction with hernia (K40-K46) names K40-K46, which includes this code

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

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K45.8Overview

What is the ICD-10 code for other specified abdominal hernia without obstruction or gangrene?

The ICD-10-CM code for other specified abdominal hernia without obstruction or gangrene is K45.8 (sometimes written as K458). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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 394, 395, 393, with relative weights from 0.6379 to 1.5877 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.