K40: Inguinal hernia

K40 refers to Inguinal hernia, a protrusion of an organ or tissue through an abnormal opening in the abdominal wall or diaphragm. Hernias may be reducible or incarcerated and can cause pain, bowel obstruction, or other complications if not treated.

Symptoms

• Visible bulge in the abdomen or groin – Often more prominent when standing or straining
• Pain or discomfort – Especially during physical activity or lifting
• Pressure or heaviness – Common in larger or chronic hernias
• Nausea or vomiting – May indicate bowel obstruction in complicated cases
• Acid reflux or chest pain – Seen in diaphragmatic hernia (K44)

Diagnosis

Diagnosis of Inguinal hernia is usually clinical through physical examination. Imaging such as ultrasound, CT scan, or MRI may be used to confirm location, size, or complications, especially in obese patients or for internal hernias.

ICD10 Code Usage

ICD10 code K40 is used by surgeons, emergency physicians, and general practitioners. It supports surgical scheduling (herniorrhaphy), documentation of complications, and hospital billing for both elective and emergency hernia repair procedures.

Related Codes

• K41 – Femoral hernia
• K42 – Umbilical hernia
• K43 – Ventral hernia
• K44 – Diaphragmatic hernia
• K45 – Other abdominal hernia
• K46 – Unspecified abdominal hernia

FAQs

Q1: What is ICD10 code K40?
A: It refers to Inguinal hernia, a condition where abdominal contents protrude through a weakened or abnormal opening in the abdominal wall or diaphragm.

Q2: What’s the difference between K40 and K41?
A: K40 refers to inguinal hernias (common in men), while K41 refers to femoral hernias (more common in women, and higher risk of strangulation).

Q3: Are umbilical (K42) and ventral (K43) hernias related?
A: Both are abdominal wall hernias but occur in different locations—umbilical at the belly button and ventral through previous surgical sites or weakened areas.

Q4: What does K46 cover?
A: K46 is used when the hernia type is not specified in clinical records or diagnosis.

Q5: Who manages these conditions?
A: General surgeons primarily manage hernias, with support from radiologists for imaging and emergency teams for complicated cases.

Conclusion

ICD10 code K40 ensures accurate diagnosis and management of Inguinal hernia, supporting surgical decision-making, timely interventions, and effective documentation in both outpatient and emergency care settings.