Home > 2010 ICD-9-CM Diagnosis Codes > Injury And Poisoning 800-999 > Intracranial Injury, Excluding Those With Skull Fracture 850-854 > Concussion 850-
Specific code 2010 ICD-9-CM Diagnosis Code 850.5
Concussion with loss of consciousness of unspecified duration
  • Short description: Concussion w coma NOS.
  • ICD-9-CM 850.5 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 850.5 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 850.5.
  • More recent version(s) of ICD-9-CM 850.5: 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 850.5 converts approximately to:
  • 2015/16 ICD-10-CM S06.0X9A Concussion with loss of consciousness of unspecified duration, initial encounter
Approximate Synonyms
  • Concussion w LOC
  • Concussion w LOC and death
  • Concussion with loss of consciousness
  • Concussion with loss of consciousness and death
ICD-9-CM Volume 2 Index entries containing back-references to 850.5:
  • Concussion (current) 850.9
    • with
      • loss of consciousness 850.5
        • brief (less than one hour)
        • moderate (1-24 hours) 850.2
        • prolonged (more than 24 hours) (with complete recovery) (with return to pre-existing conscious level) 850.3
          • without return to pre-existing conscious level 850.4
      • mental confusion or disorientation (without loss of consciousness) 850.0
        • with loss of consciousness - see Concussion, with, loss of consciousness
    • brain or cerebral (without skull fracture) 850.9
      • with
        • loss of consciousness 850.5
          • brief (less than one hour)
          • moderate (1-24 hours) 850.2
          • prolonged (more than 24 hours) (with complete recovery) (with return to pre-existing conscious level) 850.3
            • without return to pre-existing conscious level 850.4
        • mental confusion or disorientation (without loss of consciousness) 850.0
          • with loss of consciousness - see Concussion, brain, with, loss of consciousness
        • skull fracture - see Fracture, skull, by site
      • without loss of consciousness 850.0
  • Injury 959.9
    • head NEC 959.01
      • with
        • loss of consciousness 850.5
        • skull fracture - see Fracture, skull, by site
 850.4 ICD9Data.com 850.9 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 850.5 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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