AutoICD API

R56.9

Billable

Unspecified convulsions

Unspecified convulsions

Status

Billable / Specific

Block

R50-R69

Parent Code

R56

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Convulsion disorder
  • Fit NOS
  • Recurrent convulsions
  • Seizure(s) (convulsive) NOS

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

Related Codes(2)
R56.0

Febrile convulsions

R56.1

Post traumatic seizures

Billable
Also Known As / Clinical Terms(277)

SNOMED CT

UMLS

Clinical Terms

  • Progressive microcephaly, seizures, cortical blindness, developmental delay syndrome with combined immunodeficiency due to diaphanous related formin 1 mutation
  • Folinic acid responsive seizures
  • Recurrent convulsions
  • Crescendo seizure
  • Perceptual disturbances co-occurrent and due to psychoactive substance withdrawal
  • Uraemic convulsion
  • Convulsive Seizures
  • Disorder convulsive
  • Al Gazali Nair syndrome
  • Pyridoxine-dependent developmental and epileptic encephalopathy
  • Traumatic injury due to seizure
  • Early-onset seizures, distal limb anomalies, facial dysmorphism, global developmental delay syndrome
  • Left ventricular myocardial noncompaction cardiomyopathy
  • Lysine and hydroxylysine metabolism disorder
  • Migraine aura-triggered seizure
  • Tranebjaerg Svejgaard syndrome
  • Epileptic cry
  • Disorder of GABA (gamma aminobutyric acid) metabolism
  • Emergency epilepsy treatment since last appointment
  • Convulsive seizure
  • Recurrent seizure
  • Seizure(s) (convulsive) NOS
  • Hypoglycemia-induced fit
  • Uremic convulsion
  • Hypoglycemia-induced convulsion
  • Many seizures a day
  • Convulsion disorder
  • Seizures, convulsive
  • Post-fit state
  • Hypoglycaemia-induced seizure
  • Perceptual disturbances and seizures co-occurrent and due to psychoactive substance withdrawal
  • Seizures complicating infection
  • Raised convulsive threshold
  • Seizure due to migraine with aura
  • Daily seizures
  • Cluster seizure
  • Pyridoxine-dependent DEE (developmental and epileptic encephalopathy)
  • PTS - Posttraumatic seizure
  • Perceptual disturbances and seizures co-occurrent and due to alcohol withdrawal
  • Motor Seizure
  • Convulsive disorder
  • Ventricular myocardial noncompaction cardiomyopathy
  • Hereditary cerebellar atrophy
  • Disorder of gamma-aminobutyric acid metabolism
  • Primary hypomagnesemia, generalized seizures, intellectual disability, obesity syndrome
  • Seizure co-occurrent and due to substance withdrawal
  • Fit - convulsion
  • Hypoglycaemia-induced fit
  • Primary hyperaldosteronism, seizures, neurological abnormalities syndrome
  • Disorder of lysine and hydroxylysine metabolism
  • Epilepsy monitoring status
  • GNAO1-related spectrum
  • Blood magnesium abnormal
  • Microcephaly, seizure, intellectual disability, heart disease syndrome
  • Spontaneous convulsion
  • MCAHS (multiple congenital anomalies, hypotonia, seizures syndrome) type 3
  • Intellectual disability, seizures, hypotonia, ophthalmologic, skeletal anomalies syndrome
  • Progressive microcephaly, seizures, cortical blindness, developmental delay syndrome
  • Seizure, Motor
  • Essential convulsion
  • Seizure disorder
  • convulsions seizures
  • Post-ictal state
  • Serial seizure
  • Pyridoxine-dependent epilepsy
  • X-linked intellectual disability with seizure and psoriasis syndrome
  • Convulsions
  • Neurodevelopmental delay, seizures, ophthalmic anomalies, osteopenia, cerebellar atrophy syndrome
  • Primary hypomagnesaemia, generalised seizures, intellectual disability, obesity syndrome
  • Disorder of gamma aminobutyric acid metabolism
  • Osteogenesis imperfecta, retinopathy, seizures, intellectual disability syndrome
  • IRF2BPL-related regressive neurodevelopmental disorder, dystonia, seizures syndrome
  • Motor Seizures
  • Acute seizure due to infection of central nervous system
  • Seizures, Motor
  • Ictal traumatic injury
  • Seizure, Convulsive
  • Fall due to seizure
  • Hypoglycemia-induced seizure
  • Perceptual disturbances co-occurrent and due to sedative withdrawal
  • Progressive microcephaly, seizures, cortical blindness, developmental delay with combined immunodeficiency due to DIAPH1 mutation
  • Antiquitin deficiency
  • Blood magnesium below reference range
  • Seizures and intellectual disability due to hydroxylysinuria syndrome
  • Fitting
  • G protein subunit alpha o1-related developmental delay, seizures, movement disorder spectrum
  • EEG abnormality with seizure
  • SCBMS (seizures, cortical blindness, microcephaly syndrome) with combined immunodeficiency due to DIAPH1 mutation
  • PD-DEE - pyridoxine-dependent developmental and epileptic encephalopathy
  • Hypoglycaemia-induced convulsion
  • Seizure disorder as sequela of stroke
  • Genetic syndromic childhood obesity
  • Progressive microcephaly, seizures, cortical blindness, developmental delay with combined immunodeficiency due to DIAPH1 deficiency
  • Disorder of beta and omega amino acid metabolism
  • Intellectual disability, seizures, abnormal gait, facial dysmorphism syndrome
  • Seizure co-occurrent and due to sedative withdrawal
  • Acute repetitive seizure
  • Post-seizure state
  • GPAA1-related biosynthesis defect
  • Global developmental delay, neuro-ophthalmological abnormalities, seizures, intellectual disability syndrome
  • Posttraumatic seizure
  • Seizure
  • Perceptual disturbances and seizures co-occurrent and due to hypnotic withdrawal
  • Fit
  • Lowered convulsive threshold
  • Seizures and intellectual disability due to hydroxylysinuria
  • GNAO1-related developmental delay, seizures, movement disorder spectrum
  • Vitamin B6-dependent seizures
  • Congenital disorder of glycosylation due to PIGT deficiency
  • Perceptual disturbances co-occurrent and due to hypnotic withdrawal
  • Postictal state
  • Postseizure headache
  • Interferon regulatory factor 2 binding protein like-related regressive neurodevelopmental disorder, dystonia, seizures syndrome
  • Perceptual disturbance due to alcohol withdrawal
  • convulsive disorders
  • Perceptual disturbances and seizures co-occurrent and due to sedative withdrawal
  • Skraban Deardorff syndrome
  • Seizure after head injury
  • Situation-related seizures
  • Seizure co-occurrent and due to hypnotic withdrawal
  • Congenital disorder of glycosylation due to PIGT (phosphatidylinositol glycan anchor biosynthesis class T) deficiency
  • Cortical blindness
  • Glycosylphosphatidylinositol anchor attachment 1-related biosynthesis defect
  • Central convulsion
  • Convulsion
  • Fit NOS
  • Electroencephalogram abnormality with seizure
  • Folinic acid responsive developmental and epileptic encephalopathy
  • Tetanic convulsion
  • Blood magnesium outside reference range
  • Seizure co-occurrent and due to psychoactive substance withdrawal
  • Intellectual disability, seizures, macrocephaly, obesity syndrome
  • Lethal left ventricular non-compaction, seizures, hypotonia, cataract, developmental delay syndrome
  • Familial psoriasis
Frequently Asked Questions
What is the ICD-10 code for unspecified convulsions?

The ICD-10-CM code for unspecified convulsions is R56.9. The full clinical description is "Unspecified convulsions". R56.9 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code R56.9 mean?

ICD-10-CM code R56.9 represents “Unspecified convulsions”. It is classified under Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings and is a billable/specific code that can be used on a claim.

Is R56.9 a billable code?

Yes, R56.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is R56.9 in?

R56.9 is in Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (codes R00-R99).

What codes cannot be used with R56.9?

R56.9 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 SNOMED CT codes does R56.9 map to?

R56.9 maps to 68 SNOMED CT concepts: 460681000124100, 838351006, 722110003, 734434007, 166745009, and 63 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for R56.9?

R56.9 is linked to 4 UMLS Concept Unique Identifiers: C4048158, C0234972, C0751494, C1719638. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does R56.9 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified convulsions 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 R56.9?

There is no direct ICD-11 mapping available for R56.9 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.

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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.