Home > 2008 ICD-9-CM Diagnosis Codes > Diseases Of The Digestive System 520-579 > Hernia Of Abdominal Cavity 550-553 > Inguinal hernia 550-
Specific code 2008 ICD-9-CM Diagnosis Code 550.90
Unilateral or unspecified inguinal hernia without obstruction or gangrene
  • Short description: UNILAT INGUINAL HERNIA.
  • ICD-9-CM 550.90 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 550.90 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2008 version of ICD-9-CM 550.90.
  • More recent version(s) of ICD-9-CM 550.90: 2009 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 550.90 converts directly to:
  • 2015/16 ICD-10-CM K40.90 Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
Approximate Synonyms
  • Direct inguinal hernia
  • Indirect inguinal hernia
  • Inguinal hernia
  • Inguinal hernia, unilat
  • Inguinal hernia, unilateral
  • Left direct inguinal hernia
  • Left indirect inguinal hernia
  • Left inguinal hernia
  • Right direct inguinal hernia
  • Right indirect inguinal hernia
  • Right inguinal hernia
  • Unilateral inguinal hernia
 550.9 ICD9Data.com 550.91 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 550.90 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2008 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
Free ICD-9-CM Codes
Site Information
Free ICD-10-CM/PCS Codes
Free HCPCS Codes