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ICD-10-CM Codes
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2023 ICD-10-CM Diagnosis Code R56.9
2023 ICD-10-CM Diagnosis Code R56.9
Unspecified convulsions
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- R56.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM R56.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of R56.9 - other international versions of ICD-10 R56.9 may differ.
Applicable To- Convulsion disorder
- Fit NOS
- Recurrent convulsions
- Seizure(s) (convulsive) NOS
The following code(s) above
R56.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
R56.9:
Approximate Synonyms
- Generalized seizure
- Nonspecific paroxysmal spell
- Seizure
- Seizure as late effect of stroke
- Seizure disorder
- Seizure disorder as sequela of stroke
- Seizure with provoking factor
- Seizure, generalized
- Seizure, single
- Seizures in response to acute event
Clinical Information
- The most dramatic type of seizure
- The most dramatic type of seizure, characterized by tonic and clonic contraction of most skeletal muscles.
ICD-10-CM R56.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 100 Seizures with mcc
- 101 Seizures without mcc
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Convert R56.9 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to R56.9:
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Code Also: G04.8, G43.1
ICD-10-CM Diagnosis Code G04.8
Other encephalitis, myelitis and encephalomyelitis
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
ICD-10-CM Diagnosis Code G43.1
Migraine with aura
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Applicable To- Basilar migraine
- Classical migraine
- Migraine equivalents
- Migraine preceded or accompanied by transient focal neurological phenomena
- Migraine triggered seizures
- Migraine with acute-onset aura
- Migraine with aura without headache (migraine equivalents)
- Migraine with prolonged aura
- Migraine with typical aura
- Retinal migraine
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Type 1 Excludes: G40, G40, G40.89
ICD-10-CM Diagnosis Code G40
Epilepsy and recurrent seizures
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Note- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Type 1 Excludes- conversion disorder with seizures (F44.5)
- convulsions NOS (R56.9)
- post traumatic seizures (R56.1)
- seizure (convulsive) NOS (R56.9)
- seizure of newborn (P90)
ICD-10-CM Diagnosis Code G40
Epilepsy and recurrent seizures
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Note- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Type 1 Excludes- conversion disorder with seizures (F44.5)
- convulsions NOS (R56.9)
- post traumatic seizures (R56.1)
- seizure (convulsive) NOS (R56.9)
- seizure of newborn (P90)
ICD-10-CM Diagnosis Code G40.89
Other seizures
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To R56.9
R53.82 Chronic fatigue, unspecified
R54 Age-related physical debility
R56 Convulsions, not elsewhere classified
R56.0 Febrile convulsions
R56.00 Simple febrile convulsions
R56.01 Complex febrile convulsions
R56.1 Post traumatic seizures
R56.9
Unspecified convulsions
R57 Shock, not elsewhere classified
R58 Hemorrhage, not elsewhere classified
R59.0 Localized enlarged lymph nodes
R59.1 Generalized enlarged lymph nodes
R59.9 Enlarged lymph nodes, unspecified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.