H16.26Vernal keratoconjunctivitis, with limbar and corneal involvement

H16.26 is the ICD-10-CM diagnosis code for vernal keratoconjunctivitis, with limbar and corneal involvement. It belongs to category H16 (keratitis), block H15-H22 (disorders of sclera, cornea, iris and ciliary body) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within H16.2 (keratoconjunctivitis), H16.26 is specifically for vernal keratoconjunctivitis, with limbar and corneal involvement. Related codes cover unspecified keratoconjunctivitis (H16.20), exposure keratoconjunctivitis (H16.21), sicca, not specified as Sjogren's (H16.22), Neurotrophic keratoconjunctivitis (H16.23), Ophthalmia nodosa (H16.24), Phlyctenular keratoconjunctivitis (H16.25) and other keratoconjunctivitis (H16.29).

To report this condition, pick the subcode that matches the documentation: H16.261 (right eye), H16.262 (left eye), H16.263 (bilateral) and H16.269 (unspecified eye).

Don't report H16.26 together with the conditions in its Excludes1 note: vernal conjunctivitis without limbar and corneal involvement (H10.44).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.