378.53
Fourth or trochlear nerve palsy
The ICD-9 code for fourth or trochlear nerve palsy is 378.53.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 378.53 →