Other disorders of eye and adnexa (H55-H57) ICD-10-CM
The H55–H57 section covers other disorders of eye and adnexa with 43 ICD-10-CM diagnosis codes, of which 33 are billable in fiscal year 2026. The section is organized into the 2 code ranges listed below.
Code Ranges in This Section 2 ranges · 43 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| H55 | Nystagmus and other irregular eye movements (H55) | 12 | 9 |
| H57 | Other disorders of eye and adnexa (H57) | 31 | 24 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the H55–H57 Code Range
ICD-10 codes H55 to H57 cover various other disorders of the eye and adnexa that involve abnormal eye movements, unusual pupil functions, ocular pain, and miscellaneous eye-related conditions. These codes help classify specific eye movement irregularities, pupillary anomalies, and eye discomfort not captured in other categories.
The H55 series includes codes for different types of nystagmus, such as unspecified, congenital, latent, and visual deprivation nystagmus. Common terms like "irregular eye movements," "manifest nystagmus," and "jerk nystagmus" link here, assisting in coding for involuntary eye oscillations. Codes H55.8X detail other irregular eye movements, including deficient saccadic or smooth pursuit eye movements, important for diagnosing neurological or vestibular disorders. The H57 codes address anomalies of pupillary function including anisocoria (unequal pupil size), miosis (constricted pupils), and mydriasis (dilated pupils). Terms like "Argyll Robertson pupil" and "tonic pupil" help clarify these conditions. Additionally, ocular pain codes specify laterality and nature of eye discomfort, while other specified disorders capture rare or complex conditions like brow ptosis and foreign body sensation. This range provides detailed classification for specialized eye conditions frequently encountered in ophthalmology and neurology clinics.
Questions About This Page
How many codes are in the H55-H57 range?
The H55-H57 range contains 43 ICD-10-CM diagnosis codes in FY 2026. 33 of them are billable, and the rest are category headers that organize the section.
What conditions does H55-H57 cover?
The range covers other disorders of eye and adnexa. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
