Home > 2011 ICD-9-CM Diagnosis Codes > Diseases Of The Nervous System And Sense Organs 320-389 > Hereditary And Degenerative Diseases Of The Central Nervous System 330-337 > Disorders of the autonomic nervous system 337-
Specific code 2011 ICD-9-CM Diagnosis Code 337.21
Reflex sympathetic dystrophy of the upper limb
  • Short description: Rflx sym dystrph up limb.
  • ICD-9-CM 337.21 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 337.21 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 2011 version of ICD-9-CM 337.21.
  • More recent version(s) of ICD-9-CM 337.21: 2012 2013 2014 2015.
Convert to ICD-10-CM: 337.21 converts approximately to:
  • 2015/16 ICD-10-CM G90.519 Complex regional pain syndrome I of unspecified upper limb
Approximate Synonyms
  • Algodystrophy of hand (disorder)
  • Complex regional pain syndrome (CRPS) Type 1
  • Complex regional pain syndrome (CRPS) Type 1, L arm
  • Complex regional pain syndrome (CRPS) Type 1, R arm
  • Complex regional pain syndrome type 1 of bilateral arms
  • Complex regional pain syndrome type 1 of left arm
  • Complex regional pain syndrome type 1 of right arm
  • Complex regional pain syndrome Type 1, bilat arms
  • Complex regional pain syndrome Type 1, hand
  • Complex regional pain syndrome Type 1, L arm
  • Complex regional pain syndrome Type 1, left arm
  • Complex regional pain syndrome Type 1, R arm
  • Complex regional pain syndrome Type 1, right arm
  • Reflex sympathetic dystrophy (RSD), hand
Applies To
  • Complex regional pain syndrome type I of the upper limb
ICD-9-CM Volume 2 Index entries containing back-references to 337.21:
 337.20 ICD9Data.com 337.22 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 337.21 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 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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