K42Header code — not billable

Umbilical hernia

Chapter
11. Diseases of the digestive system
Category
K42
Effective date
October 1, 2026

Related codes in category K42

K42.0Umbilical hernia with obstruction, without gangreneYesK42.1Umbilical hernia with gangreneYesK42.9Umbilical hernia without obstruction or gangreneYes

Frequently asked questions

What is ICD-10 code K42?

K42 is an ICD-10-CM diagnosis code for Umbilical hernia.

Is K42 a billable code?

No. K42 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is K42 in?

K42 falls under Chapter 11: Diseases of the digestive system.

When did K42 become effective?

K42 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to K42?

K42 belongs to category K42, which includes 3 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.