H17.9 Unspecified corneal scar and opacity

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 371.00 Corneal opacity, unspecified (approximate)

Code annotations containing back-references to H17.9

Back-references to H17

• Use Additional: L51 Erythema multiforme ("corneal scars and opacities (H17.-)")

Diagnosis Index entries for H17.9

• Cicatrix (adherent) (contracted) (painful) (vicious) › cornea
• Scar, scarring › cornea

Nearby codes

• 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 (this code)