H16.259 Phlyctenular keratoconjunctivitis, unspecified 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)

• 370.31 Phlyctenular keratoconjunctivitis (approximate)

Code annotations containing back-references to H16.259

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

• H16.249 Ophthalmia nodosa, unspecified eye
• H16.25 Phlyctenular keratoconjunctivitis
• H16.251 Phlyctenular keratoconjunctivitis, right eye
• H16.252 Phlyctenular keratoconjunctivitis, left eye
• H16.253 Phlyctenular keratoconjunctivitis, bilateral
• H16.259 Phlyctenular keratoconjunctivitis, unspecified eye (this code)
• H16.26 Vernal keratoconjunctivitis, with limbar and corneal involvement
• H16.261 Vernal keratoconjunctivitis, with limbar and corneal involvement, right eye
• H16.262 Vernal keratoconjunctivitis, with limbar and corneal involvement, left eye
• H16.263 Vernal keratoconjunctivitis, with limbar and corneal involvement, bilateral
• H16.269 Vernal keratoconjunctivitis, with limbar and corneal involvement, unspecified eye