Specific code 2009 ICD-9-CM Diagnosis Code 365.21
Intermittent angle-closure glaucoma
  • Short description: INTERMIT ANGL-CLOS GLAUC.
  • ICD-9-CM 365.21 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 365.21 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2009 version of ICD-9-CM 365.21.
  • More recent version(s) of ICD-9-CM 365.21: 2010 2011 2012 2013 2014.
Disease Synonyms
  • Bilat intermittent angle closure glaucoma
  • Bilateral intermittent angle-closure glaucoma
  • Intermittent angle closure glaucoma
  • Intermittent angle closure glaucoma, both eyes
  • L intermittent angle closure glaucoma
  • Left intermittent angle closure glaucoma
  • R intermittent angle closure glaucoma
  • Right intermittent angle closure glaucoma
Applies To
  • Angle-closure glaucoma:
    • interval
    • subacute
Convert to ICD-10-CM: 365.21 converts approximately to:
  • 2014 ICD-10-CM H40.239 Intermittent angle-closure glaucoma, unspecified eye
ICD-9-CM Volume 2 Index entries containing back-references to 365.21:
  • Glaucoma (capsular) (inflammatory) (noninflammatory) (primary) 365.9
    • narrow angle (primary) 365.20
      • acute 365.22
      • chronic 365.23
      • intermittent 365.21
      • interval 365.21
      • residual stage 365.24
      • subacute 365.21
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 365.21 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.