H55.00Billable
Unspecified nystagmus
- Chapter
- 7. Diseases of the eye and adnexa
- Category
- H55
- Effective date
- October 1, 2026
Related codes in category H55
H55Nystagmus and other irregular eye movementsH55.0NystagmusH55.01Congenital nystagmusYesH55.02Latent nystagmusYesH55.03Visual deprivation nystagmusYesH55.04Dissociated nystagmusYesH55.09Other forms of nystagmusYesH55.8Other irregular eye movementsH55.81Deficient saccadic eye movementsYesH55.82Deficient smooth pursuit eye movementsYesH55.89Other irregular eye movementsYes
Frequently asked questions
What is ICD-10 code H55.00?
H55.00 is an ICD-10-CM diagnosis code for Unspecified nystagmus.
Is H55.00 a billable code?
Yes. H55.00 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is H55.00 in?
H55.00 falls under Chapter 7: Diseases of the eye and adnexa.
When did H55.00 become effective?
H55.00 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to H55.00?
H55.00 belongs to category H55, which includes 11 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.