Home > 2010 ICD-9-CM Diagnosis Codes > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > Adjustment reaction 309-
Specific code 2010 ICD-9-CM Diagnosis Code 309.21
Separation anxiety disorder
  • Short description: Separation anxiety.
  • ICD-9-CM 309.21 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 309.21 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 2010 version of ICD-9-CM 309.21.
  • More recent version(s) of ICD-9-CM 309.21: 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 309.21 converts directly to:
  • 2015/16 ICD-10-CM F93.0 Separation anxiety disorder of childhood
Approximate Synonyms
  • Separation anxiety
ICD-9-CM Volume 2 Index entries containing back-references to 309.21:
  • Anxiety (neurosis) (reaction) (state) 300.00
    • separation, abnormal 309.21
  • Depression 311
    • anaclitic 309.21
  • Disorder - see also Disease
    • separation anxiety 309.21
  • Separation
    • anxiety, abnormal 309.21
  • Shock 785.50
    • anaclitic 309.21
 309.2 ICD9Data.com 309.22 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 309.21 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 2010 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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