Home > 2014 ICD-9-CM Diagnosis Codes > Symptoms, Signs, And Ill-Defined Conditions 780-799 > Ill-Defined And Unknown Causes Of Morbidity And Mortality 797-799 > Sudden death cause unknown 798-
Specific code 2014 ICD-9-CM Diagnosis Code 798.2
Death occurring in less than 24 hours from onset of symptoms, not otherwise explained
  • 2014
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • Short description: Death within 24 hr sympt.
  • ICD-9-CM 798.2 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 798.2 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 2014 version of ICD-9-CM 798.2.
  • More recent version(s) of ICD-9-CM 798.2: 2015.
Convert to ICD-10-CM: 798.2 converts approximately to:
  • 2015/16 ICD-10-CM R99 Ill-defined and unknown cause of mortality
Applies To
  • Death known not to be violent or instantaneous, for which no cause could be discovered
  • Died without sign of disease
ICD-9-CM Volume 2 Index entries containing back-references to 798.2:
  • Death
    • cause unknown 798.2
  • Died - see also Death
    • without
      • medical attention (cause unknown) 798.9
      • sign of disease 798.2
  • SUDS (Sudden unexplained death) 798.2
 798.1 ICD9Data.com 798.9 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 798.2 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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