ICD-10-CM K40: Inguinal hernia

ICD-10-CM Diagnosis Code (2025)

Official Description for K40

Inguinal hernia

Coding Notes & Guidelines for K40

Includes Notes
  • bubonocele
  • direct inguinal hernia
  • double inguinal hernia
  • indirect inguinal hernia
  • inguinal hernia NOS
  • oblique inguinal hernia
  • scrotal hernia
Inclusion Terms
  • 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
Inclusion Terms

Bilateral inguinal hernia, with obstruction, without gangrene NOS

Inclusion Terms

Bilateral inguinal hernia, with gangrene NOS

Inclusion Terms

Bilateral inguinal hernia NOS

Inclusion Terms
  • 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
Inclusion Terms
  • Inguinal hernia, with obstruction NOS
  • Unilateral inguinal hernia, with obstruction, without gangrene NOS
Inclusion Terms
  • Inguinal hernia with gangrene NOS
  • Unilateral inguinal hernia with gangrene NOS
Inclusion Terms
  • Inguinal hernia NOS
  • Unilateral inguinal hernia NOS

Child Codes (More Specific Codes for K40):

K40.0 - Bilateral inguinal hernia, with obstruction, without gangrene K40.00 - Bilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent 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 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 K40.21 - Bilateral inguinal hernia, without obstruction or gangrene, recurrent K40.3 - Unilateral inguinal hernia, with obstruction, without gangrene K40.30 - Unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent 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 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 K40.91 - Unilateral inguinal hernia, without obstruction or gangrene, recurrent

About ICD-10-CM Code K40 (Inguinal hernia)

ICD-10-CM code K40 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM K40 became effective on October 1, 2024.

This page provides detailed information about K40 - Inguinal hernia. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Inguinal hernia.