K44.0 Diaphragmatic hernia with obstruction, without gangrene

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Instructional notes

Chapter 11

Excludes2Not included here: the patient may have both; report both when both are present.

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)

Section K40-K46

Includes

acquired hernia
congenital [except diaphragmatic or hiatus] hernia
recurrent hernia

Notes

Hernia with both gangrene and obstruction is classified to hernia with gangrene.

K44

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

congenital diaphragmatic hernia (Q79.0)
congenital hiatus hernia (Q40.1)

Includes

hiatus hernia (esophageal) (sliding)
paraesophageal hernia

This code

Inclusion terms

Diaphragmatic hernia causing obstruction
Incarcerated diaphragmatic hernia
Irreducible diaphragmatic hernia
Strangulated diaphragmatic hernia

Chapter 11: Diseases of the digestive system · K40-K46 Hernia (K40-K46)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

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