K44.9 Diaphragmatic hernia without obstruction or gangrene

Billable ICD-10-CM code, FY2026.

Applicable to

• Diaphragmatic hernia NOS

Applies from K44 Diaphragmatic hernia

Includes

• hiatus hernia (esophageal) (sliding)
• paraesophageal hernia

Excludes1 (never code together)

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

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 553.3 Diaphragmatic hernia without mention of obstruction or gangrene

Code annotations containing back-references to K44.9

Back-references to K44

• Type 2 Excludes: J98.6 Disorders of diaphragm ("diaphragmatic hernia (K44.-)")
• Type 2 Excludes: K56.7 Ileus, unspecified ("intestinal obstruction with hernia (K40-K46)")

Diagnosis Index entries for K44.9

• Hernia, hernial (acquired) (recurrent) › diaphragm, diaphragmatic
• Hernia, hernial (acquired) (recurrent) › hiatal (esophageal) (sliding)

Nearby codes

• K44 Diaphragmatic hernia
• K44.0 Diaphragmatic hernia with obstruction, without gangrene
• K44.1 Diaphragmatic hernia with gangrene
• K44.9 Diaphragmatic hernia without obstruction or gangrene (this code)