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ICD-10-CM · FY 2026 APRIL UPDATE

H16.2

Keratoconjunctivitis

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
H16.20Unspecified keratoconjunctivitisCategory
H16.201Unspecified keratoconjunctivitis, right eyeBillable
H16.202Unspecified keratoconjunctivitis, left eyeBillable
H16.203Unspecified keratoconjunctivitis, bilateralBillable
H16.209Unspecified keratoconjunctivitis, unspecified eyeBillable
H16.21Exposure keratoconjunctivitisCategory
H16.211Exposure keratoconjunctivitis, right eyeBillable
H16.212Exposure keratoconjunctivitis, left eyeBillable
H16.213Exposure keratoconjunctivitis, bilateralBillable
H16.219Exposure keratoconjunctivitis, unspecified eyeBillable
H16.22Keratoconjunctivitis sicca, not specified as Sjogren'sCategory
H16.221Keratoconjunctivitis sicca, not specified as Sjogren's, right eyeBillable
H16.222Keratoconjunctivitis sicca, not specified as Sjogren's, left eyeBillable
H16.223Keratoconjunctivitis sicca, not specified as Sjogren's, bilateralBillable
H16.229Keratoconjunctivitis sicca, not specified as Sjogren's, unspecified eyeBillable
H16.23Neurotrophic keratoconjunctivitisCategory
H16.231Neurotrophic keratoconjunctivitis, right eyeBillable
H16.232Neurotrophic keratoconjunctivitis, left eyeBillable
H16.233Neurotrophic keratoconjunctivitis, bilateralBillable
H16.239Neurotrophic keratoconjunctivitis, unspecified eyeBillable
H16.24Ophthalmia nodosaCategory
H16.241Ophthalmia nodosa, right eyeBillable
H16.242Ophthalmia nodosa, left eyeBillable
H16.243Ophthalmia nodosa, bilateralBillable
H16.249Ophthalmia nodosa, unspecified eyeBillable
H16.25Phlyctenular keratoconjunctivitisCategory
H16.251Phlyctenular keratoconjunctivitis, right eyeBillable
H16.252Phlyctenular keratoconjunctivitis, left eyeBillable
H16.253Phlyctenular keratoconjunctivitis, bilateralBillable
H16.259Phlyctenular keratoconjunctivitis, unspecified eyeBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.