Umbilical hernia (K42) ICD-10-CM
The K42 code range covers umbilical hernia with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- paraumbilical hernia
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- omphalocele Q79.2
Codes in the K42 Range 4 codes · 3 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the K42 range.
Hernia, Umbilical
A HERNIA due to an imperfect closure or weakness of the umbilical ring. It appears as a skin-covered protrusion at the UMBILICUS during crying, coughing, or straining. The hernia generally consists of OMENTUM or SMALL INTESTINE. The vast majority of umbilical hernias are congenital but can be acquired due to severe abdominal distention.
About the K42 Code Range
An umbilical hernia is a skin-covered bulge at the belly button caused by weakness or incomplete closure there.
K42 separates these hernias by whether obstruction or gangrene is present. K42.0 specifies obstruction without gangrene. K42.1 specifies gangrene. K42.9 specifies neither obstruction nor gangrene.
Questions About This Page
How many billable codes are in the K42 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the K42 range classify?
The range classifies umbilical hernia. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
