P94.1 Congenital hypertonia

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 794 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 779.89 Other specified conditions originating in the perinatal period (approximate)

Diagnosis Index entries for P94.1

• Hypertony, hypertonia, hypertonicity › congenital

Nearby codes

• P94 Disorders of muscle tone of newborn
• P94.0 Transient neonatal myasthenia gravis
• P94.1 Congenital hypertonia (this code)
• P94.2 Congenital hypotonia
• P94.8 Other disorders of muscle tone of newborn
• P94.9 Disorder of muscle tone of newborn, unspecified