Convulsions of newborn (P90) ICD-10-CM
The P90 code range covers convulsions of newborn with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the P90 Range 1 codes · 1 billable
- P90 Convulsions of newborn
About the P90 Code Range
```htmlThe ICD-10 code P90 is used specifically to identify convulsions occurring in newborns. These neonatal seizures represent abnormal electrical brain activity that can indicate serious underlying conditions during the first weeks of life.
The code covers a broad range of seizure types seen in newborns, such as benign neonatal convulsions, neonatal focal epileptic seizures, and seizures related to withdrawal from substances. It also includes syndromes like epileptic encephalopathy and conditions complicating infections or intracranial hemorrhage. Common synonyms such as "neonatal seizure," "seizure disorder," and "lethal neonatal spasticity" help clarify that P90 captures all these variations under one classification. Medical coders rely on this code to document the specific diagnosis of newborn convulsions, distinguishing them from seizures occurring in older infants or children. Understanding the ICD-10 code for convulsions of newborn facilitates precise reporting, improves communication, and supports appropriate neonatal care management.
```Questions About This Page
How many billable codes are in the P90 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the P90 range classify?
The range classifies convulsions of newborn. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
