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 > Other disorders of eye 379-
Specific code 2009 ICD-9-CM Diagnosis Code 379.40
Abnormal pupillary function unspecified
  • Short description: ABN PUPIL FUNCTION NOS.
  • ICD-9-CM 379.40 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 379.40 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 379.40.
  • More recent version(s) of ICD-9-CM 379.40: 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 379.40 converts approximately to:
  • 2015/16 ICD-10-CM H57.00 Unspecified anomaly of pupillary function
Approximate Synonyms
  • Abnormal pupillary function
  • Impaired pupillary reflex
  • Pupil function abnormality
  • Pupil response abnormality
ICD-9-CM Volume 2 Index entries containing back-references to 379.40:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • pupil reflexes 379.40
 379.4 ICD9Data.com 379.41 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 379.40 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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