Convert to ICD-10-CM: 
377.75 converts approximately to:
- 2015/16 ICD-10-CM H47.619 Cortical blindness, unspecified side of brain
 ICD-9-CM Volume 2 Index entries containing back-references to 
377.75:
- Blindness (acquired) (congenital) (both eyes) 369.00  cortical 377.75 cortical 377.75
 
- Cortical - see also condition blindness 377.75 blindness 377.75