Corneal scars and opacities (H17) ICD-10-CM
The H17 code range covers corneal scars and opacities with 24 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the H17 Range 24 codes · 18 billable
- H17 Corneal scars and opacitiesNon-billable
- H17.0 Adherent leukomaNon-billable
- H17.00 Adherent leukoma, unspecified eye
- H17.01 Adherent leukoma, right eye
- H17.02 Adherent leukoma, left eye
- H17.03 Adherent leukoma, bilateral
- H17.1 Central corneal opacityNon-billable
- H17.10 Central corneal opacity, unspecified eye
- H17.11 Central corneal opacity, right eye
- H17.12 Central corneal opacity, left eye
- H17.13 Central corneal opacity, bilateral
- H17.8 Other corneal scars and opacitiesNon-billable
- H17.81 Minor opacity of corneaNon-billable
- H17.811 Minor opacity of cornea, right eye
- H17.812 Minor opacity of cornea, left eye
- H17.813 Minor opacity of cornea, bilateral
- H17.819 Minor opacity of cornea, unspecified eye
- H17.82 Peripheral opacity of corneaNon-billable
- H17.821 Peripheral opacity of cornea, right eye
- H17.822 Peripheral opacity of cornea, left eye
- H17.823 Peripheral opacity of cornea, bilateral
- H17.829 Peripheral opacity of cornea, unspecified eye
- H17.89 Other corneal scars and opacities
- H17.9 Unspecified corneal scar and opacity
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the H17 range.
Corneal Opacity
Disorder occurring in the central or peripheral area of the cornea. The usual degree of transparency becomes relatively opaque.
About the H17 Code Range
The ICD-10 code section H17 covers various types of corneal scars and opacities, conditions affecting the clear front surface of the eye that can impair vision. These codes specify the nature and location of scarring or cloudiness, such as adherent leukoma or central corneal opacity.
Codes under H17 help medical professionals document specific corneal conditions like adherent leukoma (also called corneal leukoma or scar of the cornea) and central corneal opacity, which interfere with vision by causing cloudiness on the cornea. Additional codes describe minor opacities, peripheral opacities, or unspecified corneal scars. Laterality is often captured, distinguishing whether the right eye, left eye, or both eyes are affected. Using these detailed codes aids precise diagnosis and treatment planning for patients with visual disturbances related to corneal scarring or haze. For example, the ICD-10 code for adherent leukoma of the right eye is H17.01, while bilateral central corneal opacity is H17.13.
Questions About This Page
How many billable codes are in the H17 range?
Of the 24 codes in this range, 18 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the H17 range classify?
The range classifies corneal scars and opacities. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
