P90 — Convulsions of newborn
Is P90 billable?
Yes — P90 is billable for FY2027. P90 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. P90 may be submitted for encounters from October 1, 2026 through September 30, 2027.
P90 at a glance
| Code | P90 |
|---|---|
| Description | Convulsions of newborn |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does P90 group to?
P90 sits in MDC 15 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 791Prematurity with Major Problemsmedical
As a secondary diagnosis, P90 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is P90 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to P90. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Convulsions › infantile (idiopathic)
- Convulsions › newborn (idiopathic)
- Fit › newborn
- Newborn › convulsion (infant) (liveborn) (singleton)
- Newborn › seizure (infant) (liveborn) (singleton)
- Seizure › newborn (s)
Excludes1 — never code together
The conditions below can never be reported together with P90 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 16
The conditions below are not part of P90, but a patient may have both at the same time. When documentation supports it, P90 and the excluded code may both be reported.
How long has P90 existed?
P90 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 P90?
ICD-10-CM declares these codes mutually exclusive with P90 — exactly one of each pair can be correct for a given encounter.