2021 ICD-10-CM Diagnosis Code K46

Unspecified abdominal hernia

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • K46 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM K46 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of K46 - other international versions of ICD-10 K46 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K46. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • vaginal enterocele (
    ICD-10-CM Diagnosis Code N81.5

    Vaginal enterocele

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 1 Excludes
    N81.5
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • enterocele
  • epiplocele
  • hernia NOS
  • interstitial hernia
  • intestinal hernia
  • intra-abdominal hernia
The following code(s) above K46 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K46:
  • K00-K95
    2021 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the digestive system
  • K40-K46
    2021 ICD-10-CM Range K40-K46

    Hernia

    Includes
    • acquired hernia
    • congenital [except diaphragmatic or hiatus] hernia
    • recurrent hernia
    Note
    • Hernia with both gangrene and obstruction is classified to hernia with gangrene.
    Hernia
Clinical Information
  • A hernia occurs when part of an internal organ bulges through a weak area of muscle. Most hernias occur in the abdomen. There are several types of hernias, including
    • inguinal, the most common type, is in the groin
    • umbilical, around the belly button
    • incisional, through a scar
    • hiatal, a small opening in the diaphragm that allows the upper part of the stomach to move up into the chest.
    • congenital diaphragmatic, a birth defect that needs surgery
    hernias are common. They can affect men, women and children. A combination of muscle weakness and straining, such as with heavy lifting, might contribute. Some people are born with weak abdominal muscles and may be more likely to get a hernia. The usual treatment for a hernia is surgery to repair the opening in the muscle wall. Untreated hernias can cause pain and health problems.
  • A protrusion of abdominal structures through the retaining abdominal wall. It involves two parts: an opening in the abdominal wall, and a hernia sac consisting of peritoneum and abdominal contents. Abdominal hernias include groin hernia (hernia, femoral; hernia, inguinal) and ventral hernia.
  • An intestinal hernia.
  • Protrusion of a loop or knuckle of an organ or tissue through an abnormal opening.
  • Protrusion of tissue, structure, or part of an organ through the bone, muscular tissue, or the membrane by which it is normally contained. Hernia may involve tissues such as the abdominal wall or the respiratory diaphragm. Hernias may be internal, external, congenital, or acquired.
  • The bulging of an internal organ through a weak area or tear in the muscle or other tissue that holds it in place. Most hernias occur in the abdomen.
  • The protrusion of part of an organ or fibroadipose tissue through an abnormal opening.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to K46:
  • Applicable To: K46.1
    ICD-10-CM Diagnosis Code K46.1

    Unspecified abdominal hernia with gangrene

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Any condition listed under K46 specified as gangrenous
ICD-10-CM Codes Adjacent To K46
K43.7 Other and unspecified ventral hernia with gangrene
K43.9 Ventral hernia without obstruction or gangrene
K44 Diaphragmatic hernia
K44.0 Diaphragmatic hernia with obstruction, without gangrene
K44.1 Diaphragmatic hernia with gangrene
K44.9 Diaphragmatic hernia without obstruction or gangrene
K45 Other abdominal hernia
K45.0 Other specified abdominal hernia with obstruction, without gangrene
K45.1 Other specified abdominal hernia with gangrene
K45.8 Other specified abdominal hernia without obstruction or gangrene
K46 Unspecified abdominal hernia
K46.0 Unspecified abdominal hernia with obstruction, without gangrene
K46.1 Unspecified abdominal hernia with gangrene
K46.9 Unspecified abdominal hernia without obstruction or gangrene
K50 Crohn's disease [regional enteritis]
K50.0 Crohn's disease of small intestine
K50.00 …… without complications
K50.01 Crohn's disease of small intestine with complications
K50.011 Crohn's disease of small intestine with rectal bleeding
K50.012 Crohn's disease of small intestine with intestinal obstruction
K50.013 Crohn's disease of small intestine with fistula

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.