ICD-10 Code for Convulsions
The default ICD-10-CM 2027 code for convulsions (idiopathic) is R56.9 – Unspecified convulsions. More specific codes depend on the details documented, as listed in the official index (13 codes, 13 billable).
- Main code
R56.9– Unspecified convulsions- Billable
- Yes
- See also
- Seizure(s)
Index entries for Convulsions
- apoplectiform (cerebral ischemia) –
I67.82 - dissociative –
F44.5 - epileptic – see Epilepsy
- epileptiform, epileptoid – see Epilepsy
- ether (anesthetic) – see Table of Drugs and Chemicals, by drug
- febrile –
R56.00 - hysterical –
F44.5 - infantile –
P90- epilepsy – see Epilepsy
- jacksonian – see Epilepsy, localization-related, symptomatic, with simple partial seizures
- myoclonic –
G25.3 - newborn –
P90 - obstetrical (nephritic) (uremic) – see Eclampsia
- paretic –
A52.17 - post traumatic –
R56.1 - psychomotor – see Epilepsy, localization-related, symptomatic, with complex partial seizures
- recurrent –
R56.9 - reflex –
R25.8 - scarlatinal –
A38.8 - tetanus, tetanic – see Tetanus
- thymic –
E32.8
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.