Specific code 2014 ICD-9-CM Diagnosis Code 780.31
Febrile convulsions (simple), unspecified
  • Billable Code
  • Short description: Febrile convulsions NOS.
  • ICD-9-CM 780.31 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 780.31 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Febrile convulsion
  • Febrile seizure
  • Febrile seizure (from fever)
  • Febrile seizure, simple
  • Simple febrile seizure
Clinical Information
  • Seizures that occur during a febrile episode. It is a common condition, affecting 2-5% of children aged 3 months to five years. An autosomal dominant pattern of inheritance has been identified in some families. The majority are simple febrile seizures (generally defined as generalized onset, single seizures with a duration of less than 30 minutes). Complex febrile seizures are characterized by focal onset, duration greater than 30 minutes, and/or more than one seizure in a 24 hour period. The likelihood of developing epilepsy (i.e., a nonfebrile seizure disorder) following simple febrile seizures is low. Complex febrile seizures are associated with a moderately increased incidence of epilepsy. (from menkes, textbook of child neurology, 5th ed, p784)
  • Seizures that occur during a fever; a common condition, affecting 2-5% of children aged 3 months to five years; majority are simple febrile seizures (generally defined as generalized onset, single seizures with a duration of less than 30 minutes); complex febrile seizures are characterized by focal onset, duration greater than 30 minutes, and/or more than one seizure in a 24 hour period.
Applies To
  • Febrile seizures NOS
Convert to ICD-10-CM: 780.31 converts directly to:
  • 2014 ICD-10-CM R56.00 Simple febrile convulsions
ICD-9-CM Volume 2 Index entries containing back-references to 780.31:
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 780.31 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.