H16.121 Filamentary keratitis, right eye

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)

• 370.23 Filamentary keratitis (approximate)

Nearby codes

• H16.111 Macular keratitis, right eye
• H16.112 Macular keratitis, left eye
• H16.113 Macular keratitis, bilateral
• H16.119 Macular keratitis, unspecified eye
• H16.12 Filamentary keratitis
• H16.121 Filamentary keratitis, right eye (this code)
• H16.122 Filamentary keratitis, left eye
• H16.123 Filamentary keratitis, bilateral
• H16.129 Filamentary keratitis, unspecified eye
• H16.13 Photokeratitis
• H16.131 Photokeratitis, right eye