H16.009 Unspecified corneal ulcer, unspecified eye

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 121-122 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 370.00 Corneal ulcer, unspecified (approximate)

Code annotations containing back-references to H16.009

Back-references to H16.0

• Type 1 Excludes: H18.4 Corneal degeneration ("Mooren's ulcer (H16.0-)")
• Use Additional: L51 Erythema multiforme ("corneal ulcer (H16.0-)")

Nearby codes

• H16.0 Corneal ulcer
• H16.00 Unspecified corneal ulcer
• H16.001 Unspecified corneal ulcer, right eye
• H16.002 Unspecified corneal ulcer, left eye
• H16.003 Unspecified corneal ulcer, bilateral
• H16.009 Unspecified corneal ulcer, unspecified eye (this code)
• H16.01 Central corneal ulcer
• H16.011 Central corneal ulcer, right eye
• H16.012 Central corneal ulcer, left eye
• H16.013 Central corneal ulcer, bilateral
• H16.019 Central corneal ulcer, unspecified eye