Specific code 2009 ICD-9-CM Diagnosis Code 345.00
Generalized nonconvulsive epilepsy without intractable epilepsy
  • Short description: GEN NONCV EP W/O INTR EP.
  • ICD-9-CM 345.00 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 345.00 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2009 version of ICD-9-CM 345.00.
  • More recent version(s) of ICD-9-CM 345.00: 2010 2011 2012 2013 2014 2015.
Disease Synonyms
  • Absence epilepsy
  • Absence seizure (disorder)
  • Atonic epilepsy
  • Atonic seizure (disorder)
  • Childhood absence epilepsy
  • Epilepsy, absence
  • Epilepsy, atonic
  • Epilepsy, childhood absence
  • Epilepsy, generalized nonconvulsive
  • Epilepsy, primary generalized absence
  • Generalized nonconvulsive epilepsy
  • Generalized non-convulsive epilepsy
  • Lennox Gastaut syndrome
  • Lennox-Gastaut syndrome
  • Primary generalized absence epilepsy (disorder)
  • Seizure, atonic
  • Seizure, petit mal
  • Seizure, petit-mal
  • Seizures, atonic
Convert to ICD-10-CM: 345.00 converts approximately to:
  • 2015 ICD-10-CM G40.A01 Absence epileptic syndrome, not intractable, with status epilepticus
  • 2015 ICD-10-CM G40.A09 Absence epileptic syndrome, not intractable, without status epilepticus
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 345.00 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 2009 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.