ICD-10-CM > H00-H59 > H55-H57 > H55 H55 Nystagmus and other irregular eye movements Non-Billable/Non-Specific Codes H55.0NystagmusH55.00Unspecified nystagmusH55.01Congenital nystagmusH55.02Latent nystagmusH55.03Visual deprivation nystagmusH55.04Dissociated nystagmusH55.09Other forms of nystagmusH55.8Other irregular eye movementsH55.81Deficient saccadic eye movementsH55.82Deficient smooth pursuit eye movementsH55.89Other irregular eye movements