R56 — Convulsions, not elsewhere classified
Is R56 billable?
No — R56 is a non-billable header code. R56 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath R56.
Billable codes under this header
R56 at a glance
| Code | R56 |
|---|---|
| Description | Convulsions, not elsewhere classified |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with R56 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 18
The conditions below are not part of R56, but a patient may have both at the same time. When documentation supports it, R56 and the excluded code may both be reported.
What codes fall under R56? (3)
How long has R56 existed?
R56 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with R56?
ICD-10-CM declares these codes mutually exclusive with R56 — exactly one of each pair can be correct for a given encounter.