Hernia (K40-K46) ICD-10-CM
The K40–K46 section covers hernia with 64 ICD-10-CM diagnosis codes, of which 45 are billable in fiscal year 2027. The section is organized into the 7 code ranges listed below.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- acquired hernia
- congenital [except diaphragmatic or hiatus] hernia
- recurrent hernia
- Hernia with both gangrene and obstruction is classified to hernia with gangrene.
Code Ranges in This Section 7 ranges · 64 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the K40–K46 Code Range
These hernias occur in the groin, around the navel, in the front abdominal wall, or through the diaphragm into the chest.
The categories separate hernias by location. K40 describes inguinal hernias in the groin, while K41 describes femoral hernias lower in the groin. K42 describes umbilical hernias at the navel. K43 describes ventral hernias in the front abdominal wall and separates incisional, parastomal, and other or unspecified types. K44 describes diaphragmatic hernias. K45 and K46 distinguish other specified from unspecified abdominal hernias.
Within these categories, subdivisions distinguish obstruction (blockage), gangrene (tissue death), or neither. Inguinal and femoral hernias also separate bilateral from unilateral cases.
Questions About This Page
How many codes are in the K40-K46 range?
The K40-K46 range contains 64 ICD-10-CM diagnosis codes in FY 2027. 45 of them are billable, and the rest are category headers that organize the section.
What conditions does K40-K46 cover?
The range covers hernia. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
