ICD-10 Diagnosis Code R56.00

Simple febrile convulsions

Diagnosis Code R56.00

ICD-10: R56.00
Short Description: Simple febrile convulsions
Long Description: Simple febrile convulsions
This is the 2018 version of the ICD-10-CM diagnosis code R56.00

Valid for Submission
The code R56.00 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • General symptoms and signs (R50-R69)
      • Convulsions, not elsewhere classified (R56)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Diagnostic Related Groups
The diagnosis code R56.00 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 780.31 - Febrile convulsions NOS

  • Familial febrile convulsions
  • Febrile convulsion
  • Generalized epilepsy with febrile seizures plus
  • Generalized epilepsy with febrile seizures plus, non-refractory
  • Generalized epilepsy with febrile seizures plus, refractory
  • On examination - febrile convulsion
  • On examination - fit/convulsion
  • Recurrent febrile convulsion
  • Simple febrile seizure
  • Simple febrile seizure, non-refractory
  • Simple febrile seizure, refractory

Index of Diseases and Injuries
References found for the code R56.00 in the Index of Diseases and Injuries:

Information for Patients


Seizures are symptoms of a brain problem. They happen because of sudden, abnormal electrical activity in the brain. When people think of seizures, they often think of convulsions in which a person's body shakes rapidly and uncontrollably. Not all seizures cause convulsions. There are many types of seizures and some have mild symptoms. Seizures fall into two main groups. Focal seizures, also called partial seizures, happen in just one part of the brain. Generalized seizures are a result of abnormal activity on both sides of the brain.

Most seizures last from 30 seconds to 2 minutes and do not cause lasting harm. However, it is a medical emergency if seizures last longer than 5 minutes or if a person has many seizures and does not wake up between them. Seizures can have many causes, including medicines, high fevers, head injuries and certain diseases. People who have recurring seizures due to a brain disorder have epilepsy.

NIH: National Institute of Neurological Disorders and Stroke

  • Absence seizure (Medical Encyclopedia)
  • EEG (Medical Encyclopedia)
  • Epilepsy or seizures - discharge (Medical Encyclopedia)
  • Febrile seizures (Medical Encyclopedia)
  • Generalized tonic-clonic seizure (Medical Encyclopedia)
  • Partial (focal) seizure (Medical Encyclopedia)
  • Seizures (Medical Encyclopedia)

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