Specific code 2014 ICD-9-CM Diagnosis Code 345.3
Grand mal status
  • Billable Code
  • ICD-9-CM 345.3 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 345.3 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Epilepsy, generalized idiopathic
  • Epilepsy, generalized idiopathic w status epilepticus
  • Epilepsy, generalized idiopathic, intractable w status epilepticus
  • Status epilepticus
  • Status epilepticus due to generalized idiopathic epilepsy (disorder)
  • Status epilepticus due to generalized intractable idiopathic epilepsy (disorder)
  • Status epilepticus, grand mal
345.3 Excludes
  • epilepsia partialis continua (345.7) status:
Applies To
  • Status epilepticus NOS
Convert to ICD-10-CM: 345.3 converts approximately to:
  • 2014 ICD-10-CM G40.301 Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
ICD-9-CM Volume 2 Index entries containing back-references to 345.3:
  • Coma 780.01
    • epileptic 345.3
  • Epilepsy, epileptic (idiopathic) 345.9
    • coma 345.3
  • Seizure(s) 780.39
  • Status (post)
    • convulsivus idiopathicus (see also Epilepsy) 345.3
    • epileptic, epilepticus (absence) (grand mal) (see also Epilepsy) 345.3
    • grand mal 345.3
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 345.3 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.