2027 ICD-10-CM Diagnosis Code K45.0Other specified abdominal hernia with obstruction, without gangrene
ICD-10-CM Codes›K00–K95›K40-K46›K45
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 393 through 395, 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 45 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abdominal hernia and Intestinal obstruction and ileus.
Code Identity
Code Classification
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
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K45.0: 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.
- abdominal hernia, specified site NEC
- lumbar hernia
- obturator hernia
- pudendal hernia
- retroperitoneal hernia
- sciatic hernia
- acquired hernia
- congenital [except diaphragmatic or hiatus] hernia
- recurrent hernia
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Other specified abdominal hernia causing obstruction
- Other specified incarcerated abdominal hernia
- Other specified irreducible abdominal hernia
- Other specified strangulated abdominal 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.
- 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.
- 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 K45.0, its category, or a range that includes it.
Applicable To 1
These notes mention K45.0.
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.
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.
Code HistoryHistory
Questions About K45.0Overview
What is the ICD-10 code for other specified abdominal hernia with obstruction, without gangrene?
The ICD-10-CM code for other specified abdominal hernia with obstruction, without gangrene is K45.0 (sometimes written as K450). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
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 793, 791, 394, 395, 393, with relative weights from 0.6379 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.
Is K45.0 a CC or MCC?
CMS lists K45.0 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 45 closely related codes in its exclusion list.
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.
