Home > 2009 ICD-9-CM Diagnosis Codes > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Eye And Adnexa 360-379 > Inflammation of eyelids 373-
Specific code 2009 ICD-9-CM Diagnosis Code 373.11
Hordeolum externum
  • ICD-9-CM 373.11 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 373.11 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 2009 version of ICD-9-CM 373.11.
  • More recent version(s) of ICD-9-CM 373.11: 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 373.11 converts approximately to:
  • 2015/16 ICD-10-CM H00.019 Hordeolum externum unspecified eye, unspecified eyelid
Approximate Synonyms
  • External hordeolum
  • Hordeolum
  • Hordeolum, external
  • Hordeolum, external (stye)
  • L hordeolum externum
  • L lower hordeolum externum
  • L upper hordeolum externum
  • Left hordeolum externum
  • Left hordeolum externum (eye condition)
  • Left lower hordeolum externum
  • Left lower hordeolum externum (eye condition)
  • Left upper hordeolum externum
  • Left upper hordeolum externum (eye condition)
  • R hordeolum externum
  • R lower hordeolum externum
  • R upper hordeolum externum
  • Right hordeolum externum
  • Right hordeolum externum (eye condition)
  • Right lower hordeolum externum
  • Right upper hordeolum externum
  • Right upper hordeolum externum (eye condition)
Applies To
  • Hordeolum NOS
  • Stye
ICD-9-CM Volume 2 Index entries containing back-references to 373.11:
  • Fistula (sinus) 686.9
    • eyelid 373.11
  • Hordeolum (external) (eyelid) 373.11
  • Meibomian
    • stye 373.11
  • Sty, stye 373.11
    • external 373.11
 373.1 ICD9Data.com 373.12 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 373.11 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 2009 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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