H16.209 Unspecified keratoconjunctivitis, unspecified eye

Billable ICD-10-CM code, FY2026.

Applies from H16.20 Unspecified keratoconjunctivitis

Applicable to

• Superficial keratitis with conjunctivitis NOS

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 370.40 Keratoconjunctivitis, unspecified (approximate)

Code annotations containing back-references to H16.209

Back-references to H16.2

• Type 1 Excludes: H10 Conjunctivitis ("keratoconjunctivitis (H16.2-)")
• Type 1 Excludes: H11 Other disorders of conjunctiva ("keratoconjunctivitis (H16.2-)")
• Type 2 Excludes: H44.1 Other endophthalmitis ("ophthalmia nodosa (H16.2-)")

Nearby codes

• H16.2 Keratoconjunctivitis
• H16.20 Unspecified keratoconjunctivitis
• H16.201 Unspecified keratoconjunctivitis, right eye
• H16.202 Unspecified keratoconjunctivitis, left eye
• H16.203 Unspecified keratoconjunctivitis, bilateral
• H16.209 Unspecified keratoconjunctivitis, unspecified eye (this code)
• H16.21 Exposure keratoconjunctivitis
• H16.211 Exposure keratoconjunctivitis, right eye
• H16.212 Exposure keratoconjunctivitis, left eye
• H16.213 Exposure keratoconjunctivitis, bilateral
• H16.219 Exposure keratoconjunctivitis, unspecified eye