K40 ICD-10-CA category: Inguinal hernia
K40 isn’t a code on its own. Choose one of the 6 codes beneath it, the one the documentation supports.
Official description
K40Inguinal hernia
ICD-10-CA · Canada
Codes in K40
K40 isn’t a code on its own. Open the code that matches what the note documents.
K40.0Bilateral inguinal hernia, with obstruction, without gangreneK40.1Bilateral inguinal hernia, with gangreneK40.2Bilateral inguinal hernia, without obstruction or gangreneK40.3Unilateral or unspecified inguinal hernia, with obstruction, without gangreneK40.4Unilateral or unspecified inguinal hernia, with gangreneK40.9Unilateral or unspecified inguinal hernia, without obstruction or gangreneNotes for K40
As CIHI prints them, with any note K40 takes from the headings above it.
Includes
- Bubonoceleinguinal hernia:• NOS• direct• double• indirect• obliquescrotal hernia
- Hernia:• acquired• congenital [except diaphragmatic or hiatus]• recurrentFrom K40-K46 Hernia
Excludes
Conditions classified elsewhere.
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 11: Diseases of the digestive system (K00-K93)
Note
- Hernia with both gangrene and obstruction is classified to hernia with gangrene.From K40-K46 Hernia
Where K40 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K40-K46Hernia
- 3Category K40Inguinal hernia
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is K40 a valid ICD-10-CA code?
No. K40 (Inguinal hernia) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 6 codes; record the one the documentation supports.
Where is K40 in ICD-10-CA?
K40 sits under K40-K46 Hernia, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K40?
ICD-10-CA lists Includes, Note, Excludes notes for K40, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.