378: Strabismus and other disorders of binocular eye movements
Excludes:
nystagmus and other irregular eye movements (379.50-379.59)
378.4 Heterophoria
378.40: Heterophoria, unspecified
378.41: Esophoria
378.42: Exophoria
378.43: Vertical heterophoria
378.44: Cyclophoria
378.45: Alternating hyperphoria
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