ICD-9-CM 369.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 369.9 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Vision considered to be inferior to normal vision as represented by accepted standards of acuity, field of vision, or motility. Low vision generally refers to visual disorders that are caused by diseases that cannot be corrected by refraction (e.g., macular degeneration; retinitis pigmentosa; diabetic retinopathy, etc.)
Visual loss: objective loss of visual acuity during a finite period attributable to an underlying disease
2015 ICD-9-CM Diagnosis Code 369.9 
vision NEC 369.9
defect, defective (see also Impaired, vision) 369.9
