P90 Convulsions of newborn

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Excludes1 (never code together)

• benign myoclonic epilepsy in infancy (G40.3-)
• benign neonatal convulsions (familial) (G40.3-)

Applies from P90 Convulsions of newborn

Excludes1 (never code together)

• benign myoclonic epilepsy in infancy (G40.3-)
• benign neonatal convulsions (familial) (G40.3-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 201 — Seizure Disorders and Convulsions

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 779.0 Convulsions in newborn

Code annotations containing back-references to P90

Back-references to P90

• Type 1 Excludes: G40 Epilepsy and recurrent seizures ("seizure of newborn (P90)")
• Type 1 Excludes: R56 Convulsions, not elsewhere classified ("newborn convulsions and seizures (P90)")

Back-references to P90

• Type 1 Excludes: G40 Epilepsy and recurrent seizures ("seizure of newborn (P90)")
• Type 1 Excludes: R56 Convulsions, not elsewhere classified ("newborn convulsions and seizures (P90)")

Diagnosis Index entries for P90

• Convulsions (idiopathic) › infantile
• Convulsions (idiopathic) › newborn
• Fit › newborn
• Newborn (infant) (liveborn) (singleton) › convulsion
• Newborn (infant) (liveborn) (singleton) › seizure
• Seizure (s) › newborn

Nearby codes

• P90 Convulsions of newborn (this code)