1. ICD-10-CM Codes
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2. K00-K95 Diseases of the digestive system
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3. K40-K46 Hernia
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4. K40- Inguinal hernia
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2018 ICD-10-CM Diagnosis Code K40.21

Bilateral inguinal hernia, without obstruction or gangrene, recurrent

2016 2017 2018 Billable/Specific Code

• K40.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• Short description: Bilateral inguinal hernia, w/o obst or gangrene, recurrent
• The 2018 edition of ICD-10-CM K40.21 became effective on October 1, 2017.
• This is the American ICD-10-CM version of K40.21 - other international versions of ICD-10 K40.21 may differ.

• Bilateral recurrent inguinal hernia
• Both sides recurrent inguinal hernias

• 393 Other digestive system diagnoses with mcc
• 394 Other digestive system diagnoses with cc
• 395 Other digestive system diagnoses without cc/mcc

Convert K40.21 to ICD-9-CM

• 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

• Hernia, hernial (acquired) (recurrent) K46.9
  ICD-10-CM Diagnosis Code K46.9

  Unspecified abdominal hernia without obstruction or gangrene

  2016 2017 2018 Billable/Specific Code

  Applicable To

  • Abdominal hernia NOS
  • inguinal (direct) (external) (funicular) (indirect) (internal) (oblique) (scrotal) (sliding) K40.90
    ICD-10-CM Diagnosis Code K40.90

    Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent

    2016 2017 2018 Billable/Specific Code

    Applicable To

    • Inguinal hernia NOS
    • Unilateral inguinal hernia NOS
    • bilateral K40.20
      ICD-10-CM Diagnosis Code K40.20

      Bilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent

      2016 2017 2018 Billable/Specific Code

      Applicable To

      • Bilateral inguinal hernia NOS
      • recurrent K40.21

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