H55.01 – Congenital nystagmus
ICD-10-CM 2027 diagnosis code · Other disorders of eye and adnexa
ICD-10-CM code
H55.01
- Code
H55.01(claims format:H5501)- Description
- Congenital nystagmus
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 7. Diseases of the eye and adnexa (H00-H59)
- Block
- H55-H57 Other disorders of eye and adnexa
- Parent codes
- H55 › H55.0
Index terms for H55.01
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H55.0
- H55.00 – Unspecified nystagmusBillable
- H55.02 – Latent nystagmusBillable
- H55.03 – Visual deprivation nystagmusBillable
- H55.04 – Dissociated nystagmusBillable
- H55.09 – Other forms of nystagmusBillable
Frequently asked questions
What is ICD-10 code H55.01?
H55.01 is the ICD-10-CM code for congenital nystagmus, in the block H55-H57 (Other disorders of eye and adnexa).
Is H55.01 a billable code?
Yes. H55.01 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does H55.01 belong to?
It belongs to category H55 – Nystagmus and other irregular eye movements.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.