R56
Non-billableConvulsions, not elsewhere classified
Convulsions, not elsewhere classified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •abnormal findings on antenatal screening of motherO28
- •certain conditions originating in the perinatal periodP04-P96
- signs and symptoms classified in the body system chapters
- •signs and symptoms of breast,N63, N64.5
Child Codes (3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for convulsions, not elsewhere classified?
The ICD-10-CM code for convulsions, not elsewhere classified is R56. The full clinical description is "Convulsions, not elsewhere classified". R56 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code R56 mean?
ICD-10-CM code R56 represents “Convulsions, not elsewhere classified”. It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a non-billable header code. Use a more specific child code for billing purposes.
Is R56 a billable code?
No, R56 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under R56.
What chapter is R56 in?
R56 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).
What codes cannot be used with R56?
R56 has Excludes1 notes indicating codes that cannot be used together with it, including: dissociative convulsions and seizures (F44.5); epileptic convulsions and seizures (G40.-); newborn convulsions and seizures (P90).
What are the subcategories under R56?
R56 has 3 child codes, including: R56.0 (Febrile convulsions), R56.1 (Post traumatic seizures), R56.9 (Unspecified convulsions).
What are the UMLS CUIs for R56?
R56 is linked to 1 UMLS Concept Unique Identifier: C0495698. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does R56 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like convulsions, not elsewhere classified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of R56?
R56 maps to the ICD-11 code: 8A68.Z (Type of seizure, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.