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 2026, 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
About the K42 Code Range
ICD-10 code K42 covers diagnoses related to an umbilical hernia, a condition where tissue pushes through the abdominal muscles near the navel. These codes specify whether the hernia is uncomplicated, obstructed, or complicated by gangrene.
This section includes K42.9 for umbilical hernias without obstruction or gangrene, commonly described as a reducible or protruding umbilicus. The code K42.0 is used when the hernia causes intestinal obstruction without tissue death, also referred to by synonyms such as obstructed or strangulated umbilical hernia. For cases where tissue death occurs, called gangrene, the correct code is K42.1, which covers paraumbilical hernias with gangrene, including conditions sometimes known as congenital omphalocele with gangrene. Using these specific ICD-10 codes ensures precise documentation and coding of various umbilical hernia presentations, helping healthcare providers accurately capture the severity and complications involved.
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, 2025 through September 30, 2026. 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
