ICD-10-CM Book 2026 Edition

Chapters  /  Chapter 11  /  K40-K46

Hernia (K40-K46)

Includes: acquired hernia
congenital [except diaphragmatic or hiatus] hernia
recurrent hernia
K40 Inguinal hernia
Includes bubonocele
direct inguinal hernia
double inguinal hernia
indirect inguinal hernia
inguinal hernia NOS
oblique inguinal hernia
scrotal hernia
K40.0 Bilateral inguinal hernia, with obstruction, without gangrene
Inguinal hernia (bilateral) causing obstruction without gangrene
Incarcerated inguinal hernia (bilateral) without gangrene
Irreducible inguinal hernia (bilateral) without gangrene
Strangulated inguinal hernia (bilateral) without gangrene
K40.00 Bilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent
Bilateral inguinal hernia, with obstruction, without gangrene NOS
K40.01 Bilateral inguinal hernia, with obstruction, without gangrene, recurrent
K40.1 Bilateral inguinal hernia, with gangrene
K40.10 Bilateral inguinal hernia, with gangrene, not specified as recurrent
Bilateral inguinal hernia, with gangrene NOS
K40.11 Bilateral inguinal hernia, with gangrene, recurrent
K40.2 Bilateral inguinal hernia, without obstruction or gangrene
K40.20 Bilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
Bilateral inguinal hernia NOS
K40.21 Bilateral inguinal hernia, without obstruction or gangrene, recurrent
K40.3 Unilateral inguinal hernia, with obstruction, without gangrene
Inguinal hernia (unilateral) causing obstruction without gangrene
Incarcerated inguinal hernia (unilateral) without gangrene
Irreducible inguinal hernia (unilateral) without gangrene
Strangulated inguinal hernia (unilateral) without gangrene
K40.30 Unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent
Inguinal hernia, with obstruction NOS
Unilateral inguinal hernia, with obstruction, without gangrene NOS
K40.31 Unilateral inguinal hernia, with obstruction, without gangrene, recurrent
K40.4 Unilateral inguinal hernia, with gangrene
K40.40 Unilateral inguinal hernia, with gangrene, not specified as recurrent
Inguinal hernia with gangrene NOS
Unilateral inguinal hernia with gangrene NOS
K40.41 Unilateral inguinal hernia, with gangrene, recurrent
K40.9 Unilateral inguinal hernia, without obstruction or gangrene
K40.90 Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
Inguinal hernia NOS
Unilateral inguinal hernia NOS
K40.91 Unilateral inguinal hernia, without obstruction or gangrene, recurrent
K41 Femoral hernia
K41.0 Bilateral femoral hernia, with obstruction, without gangrene
Femoral hernia (bilateral) causing obstruction, without gangrene
Incarcerated femoral hernia (bilateral), without gangrene
Irreducible femoral hernia (bilateral), without gangrene
Strangulated femoral hernia (bilateral), without gangrene
K41.00 Bilateral femoral hernia, with obstruction, without gangrene, not specified as recurrent
Bilateral femoral hernia, with obstruction, without gangrene NOS
K41.01 Bilateral femoral hernia, with obstruction, without gangrene, recurrent
K41.1 Bilateral femoral hernia, with gangrene
K41.10 Bilateral femoral hernia, with gangrene, not specified as recurrent
Bilateral femoral hernia, with gangrene NOS
K41.11 Bilateral femoral hernia, with gangrene, recurrent
K41.2 Bilateral femoral hernia, without obstruction or gangrene
K41.20 Bilateral femoral hernia, without obstruction or gangrene, not specified as recurrent
Bilateral femoral hernia NOS
K41.21 Bilateral femoral hernia, without obstruction or gangrene, recurrent
K41.3 Unilateral femoral hernia, with obstruction, without gangrene
Femoral hernia (unilateral) causing obstruction, without gangrene
Incarcerated femoral hernia (unilateral), without gangrene
Irreducible femoral hernia (unilateral), without gangrene
Strangulated femoral hernia (unilateral), without gangrene
K41.30 Unilateral femoral hernia, with obstruction, without gangrene, not specified as recurrent
Femoral hernia, with obstruction NOS
Unilateral femoral hernia, with obstruction NOS
K41.31 Unilateral femoral hernia, with obstruction, without gangrene, recurrent
K41.4 Unilateral femoral hernia, with gangrene
K41.40 Unilateral femoral hernia, with gangrene, not specified as recurrent
Femoral hernia, with gangrene NOS
Unilateral femoral hernia, with gangrene NOS
K41.41 Unilateral femoral hernia, with gangrene, recurrent
K41.9 Unilateral femoral hernia, without obstruction or gangrene
K41.90 Unilateral femoral hernia, without obstruction or gangrene, not specified as recurrent
Femoral hernia NOS
Unilateral femoral hernia NOS
K41.91 Unilateral femoral hernia, without obstruction or gangrene, recurrent
K42 Umbilical hernia
Includes paraumbilical hernia
Excludes1 omphalocele (Q79.2)
K42.0 Umbilical hernia with obstruction, without gangrene
Umbilical hernia causing obstruction, without gangrene
Incarcerated umbilical hernia, without gangrene
Irreducible umbilical hernia, without gangrene
Strangulated umbilical hernia, without gangrene
K42.1 Umbilical hernia with gangrene
Gangrenous umbilical hernia
K42.9 Umbilical hernia without obstruction or gangrene
Umbilical hernia NOS
K43 Ventral hernia
K43.0 Incisional hernia with obstruction, without gangrene
Incisional hernia causing obstruction, without gangrene
Incarcerated incisional hernia, without gangrene
Irreducible incisional hernia, without gangrene
Strangulated incisional hernia, without gangrene
K43.1 Incisional hernia with gangrene
Gangrenous incisional hernia
K43.2 Incisional hernia without obstruction or gangrene
Incisional hernia NOS
K43.3 Parastomal hernia with obstruction, without gangrene
Incarcerated parastomal hernia, without gangrene
Irreducible parastomal hernia, without gangrene
Parastomal hernia causing obstruction, without gangrene
Strangulated parastomal hernia, without gangrene
K43.4 Parastomal hernia with gangrene
Gangrenous parastomal hernia
K43.5 Parastomal hernia without obstruction or gangrene
Parastomal hernia NOS
K43.6 Other and unspecified ventral hernia with obstruction, without gangrene
Epigastric hernia causing obstruction, without gangrene
Hypogastric hernia causing obstruction, without gangrene
Incarcerated epigastric hernia without gangrene
Incarcerated hypogastric hernia without gangrene
Incarcerated midline hernia without gangrene
Incarcerated spigelian hernia without gangrene
Incarcerated subxiphoid hernia without gangrene
Irreducible epigastric hernia without gangrene
Irreducible hypogastric hernia without gangrene
Irreducible midline hernia without gangrene
Irreducible spigelian hernia without gangrene
Irreducible subxiphoid hernia without gangrene
Midline hernia causing obstruction, without gangrene
Spigelian hernia causing obstruction, without gangrene
Strangulated epigastric hernia without gangrene
Strangulated hypogastric hernia without gangrene
Strangulated midline hernia without gangrene
Strangulated spigelian hernia without gangrene
Strangulated subxiphoid hernia without gangrene
Subxiphoid hernia causing obstruction, without gangrene
K43.7 Other and unspecified ventral hernia with gangrene
Any condition listed under K43.6 specified as gangrenous
K43.9 Ventral hernia without obstruction or gangrene
Epigastric hernia
Ventral hernia NOS
K44 Diaphragmatic hernia
Includes hiatus hernia (esophageal) (sliding)
paraesophageal hernia
Excludes1 congenital diaphragmatic hernia (Q79.0)
congenital hiatus hernia (Q40.1)
K44.0 Diaphragmatic hernia with obstruction, without gangrene
Diaphragmatic hernia causing obstruction
Incarcerated diaphragmatic hernia
Irreducible diaphragmatic hernia
Strangulated diaphragmatic hernia
K44.1 Diaphragmatic hernia with gangrene
Gangrenous diaphragmatic hernia
K44.9 Diaphragmatic hernia without obstruction or gangrene
Diaphragmatic hernia NOS
K45 Other abdominal hernia
Includes abdominal hernia, specified site NEC
lumbar hernia
obturator hernia
pudendal hernia
retroperitoneal hernia
sciatic hernia
K45.0 Other specified abdominal hernia with obstruction, without gangrene
Other specified abdominal hernia causing obstruction
Other specified incarcerated abdominal hernia
Other specified irreducible abdominal hernia
Other specified strangulated abdominal hernia
K45.1 Other specified abdominal hernia with gangrene
Any condition listed under K45 specified as gangrenous
K45.8 Other specified abdominal hernia without obstruction or gangrene
K46 Unspecified abdominal hernia
Includes enterocele
epiplocele
hernia NOS
interstitial hernia
intestinal hernia
intra-abdominal hernia
Excludes1 vaginal enterocele (N81.5)
K46.0 Unspecified abdominal hernia with obstruction, without gangrene
Unspecified abdominal hernia causing obstruction
Unspecified incarcerated abdominal hernia
Unspecified irreducible abdominal hernia
Unspecified strangulated abdominal hernia
K46.1 Unspecified abdominal hernia with gangrene
Any condition listed under K46 specified as gangrenous
K46.9 Unspecified abdominal hernia without obstruction or gangrene
Abdominal hernia NOS