2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Eye And Adnexa 360-379 > Visual Disturbances 368.* > 2006 ICD-9-CM Diagnosis 368.51 Protan defect View the most recent version of ICD-9-CM 368.51 368.51 is a specific code that can be used to specify a diagnosis 368.51 contains 4 index entries View the ICD-9-CM Volume 1 368.* hierarchy Alternate Terminology Protanomaly Protanopia  Index entries containing 368.51: Blindness (acquired) (congenital) (both eyes) 369.00 color (congenital) 368.59 red 368.51 Defect, defective 759.9 protan 368.51 Protanomaly 368.51 Protanopia (anomalous trichromat) (complete) (incomplete) 368.51