Convert to ICD-10-CM: 
779.1 converts approximately to:
- 2015/16 ICD-10-CM P91.8 Other specified disturbances of cerebral status of newbornOr: 
- 2015/16 ICD-10-CM P91.9 Disturbance of cerebral status of newborn, unspecified
 ICD-9-CM Volume 2 Index entries containing back-references to 
779.1:
- Hyperirritability (cerebral), in newborn 779.1
- Irritability 799.22  cerebral, newborn 779.1 cerebral, newborn 779.1