Convert ICD-10-CM K40.40 to ICD-9-CM

ICD-10-CM K40.40 converts directly to:
  • 2015 ICD-9-CM 550.00 Inguinal hernia, with gangrene, unilateral or unspecified (not specified as recurrent)

Source: 2020 ICD-10-CM CMS General Equivalence Mappings.