Home > 2008 ICD-9-CM Diagnosis Codes > Diseases Of The Nervous System And Sense Organs 320-389 > Inflammatory Diseases Of The Central Nervous System 320-327 > Organic sleep disorders 327-
Non-specific code 2008 ICD-9-CM Diagnosis Code 327.3
Circadian rhythm sleep disorder
  • There are 9 ICD-9-CM codes below 327.3 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
  • You are viewing the 2008 version of ICD-9-CM 327.3.
  • More recent version(s) of ICD-9-CM 327.3: 2009 2010 2011 2012 2013 2014 2015.
327.3 Excludes
  • alcohol induced circadian rhythm sleep disorder (291.82)
  • circadian rhythm sleep disorder of nonorganic origin (307.45)
  • disruption of 24 hour sleep wake cycle NOS (780.55)
  • drug induced circadian rhythm sleep disorder (292.85)
Applies To
  • Organic disorder of sleep wake cycle
  • Organic disorder of sleep wake schedule
 327.29 ICD9Data.com 327.30 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 327.3 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.
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