ICD-10-CM category
H16 Keratitis
H16 is a category, not a billable code. Report one of the 126 complete codes below.
H16.0…
32 codes
- H16.001Unspecified corneal ulcer, right eye
- H16.002Unspecified corneal ulcer, left eye
- H16.003Unspecified corneal ulcer, bilateral
- H16.009Unspecified corneal ulcer, unspecified eye
- H16.011Central corneal ulcer, right eye
- H16.012Central corneal ulcer, left eye
- H16.013Central corneal ulcer, bilateral
- H16.019Central corneal ulcer, unspecified eye
- H16.021Ring corneal ulcer, right eye
- H16.022Ring corneal ulcer, left eye
- H16.023Ring corneal ulcer, bilateral
- H16.029Ring corneal ulcer, unspecified eye
- H16.031Corneal ulcer with hypopyon, right eye
- H16.032Corneal ulcer with hypopyon, left eye
- H16.033Corneal ulcer with hypopyon, bilateral
- H16.039Corneal ulcer with hypopyon, unspecified eye
- H16.041Marginal corneal ulcer, right eye
- H16.042Marginal corneal ulcer, left eye
- H16.043Marginal corneal ulcer, bilateral
- H16.049Marginal corneal ulcer, unspecified eye
- H16.051Mooren's corneal ulcer, right eye
- H16.052Mooren's corneal ulcer, left eye
- H16.053Mooren's corneal ulcer, bilateral
- H16.059Mooren's corneal ulcer, unspecified eye
- H16.061Mycotic corneal ulcer, right eye
- H16.062Mycotic corneal ulcer, left eye
- H16.063Mycotic corneal ulcer, bilateral
- H16.069Mycotic corneal ulcer, unspecified eye
- H16.071Perforated corneal ulcer, right eye
- H16.072Perforated corneal ulcer, left eye
- H16.073Perforated corneal ulcer, bilateral
- H16.079Perforated corneal ulcer, unspecified eye
H16.1…
20 codes
- H16.101Unspecified superficial keratitis, right eye
- H16.102Unspecified superficial keratitis, left eye
- H16.103Unspecified superficial keratitis, bilateral
- H16.109Unspecified superficial keratitis, unspecified eye
- H16.111Macular keratitis, right eye
- H16.112Macular keratitis, left eye
- H16.113Macular keratitis, bilateral
- H16.119Macular keratitis, unspecified eye
- H16.121Filamentary keratitis, right eye
- H16.122Filamentary keratitis, left eye
- H16.123Filamentary keratitis, bilateral
- H16.129Filamentary keratitis, unspecified eye
- H16.131Photokeratitis, right eye
- H16.132Photokeratitis, left eye
- H16.133Photokeratitis, bilateral
- H16.139Photokeratitis, unspecified eye
- H16.141Punctate keratitis, right eye
- H16.142Punctate keratitis, left eye
- H16.143Punctate keratitis, bilateral
- H16.149Punctate keratitis, unspecified eye
H16.2…
32 codes
- H16.201Unspecified keratoconjunctivitis, right eye
- H16.202Unspecified keratoconjunctivitis, left eye
- H16.203Unspecified keratoconjunctivitis, bilateral
- H16.209Unspecified keratoconjunctivitis, unspecified eye
- H16.211Exposure keratoconjunctivitis, right eye
- H16.212Exposure keratoconjunctivitis, left eye
- H16.213Exposure keratoconjunctivitis, bilateral
- H16.219Exposure keratoconjunctivitis, unspecified eye
- H16.221Keratoconjunctivitis sicca, not specified as Sjogren's, right eye
- H16.222Keratoconjunctivitis sicca, not specified as Sjogren's, left eye
- H16.223Keratoconjunctivitis sicca, not specified as Sjogren's, bilateral
- H16.229Keratoconjunctivitis sicca, not specified as Sjogren's, unspecified eye
- H16.231Neurotrophic keratoconjunctivitis, right eye
- H16.232Neurotrophic keratoconjunctivitis, left eye
- H16.233Neurotrophic keratoconjunctivitis, bilateral
- H16.239Neurotrophic keratoconjunctivitis, unspecified eye
- H16.241Ophthalmia nodosa, right eye
- H16.242Ophthalmia nodosa, left eye
- H16.243Ophthalmia nodosa, bilateral
- H16.249Ophthalmia nodosa, unspecified eye
- H16.251Phlyctenular keratoconjunctivitis, right eye
- H16.252Phlyctenular keratoconjunctivitis, left eye
- H16.253Phlyctenular keratoconjunctivitis, bilateral
- H16.259Phlyctenular keratoconjunctivitis, unspecified eye
- H16.261Vernal keratoconjunctivitis, with limbar and corneal involvement, right eye
- H16.262Vernal keratoconjunctivitis, with limbar and corneal involvement, left eye
- H16.263Vernal keratoconjunctivitis, with limbar and corneal involvement, bilateral
- H16.269Vernal keratoconjunctivitis, with limbar and corneal involvement, unspecified eye
- H16.291Other keratoconjunctivitis, right eye
- H16.292Other keratoconjunctivitis, left eye
- H16.293Other keratoconjunctivitis, bilateral
- H16.299Other keratoconjunctivitis, unspecified eye
H16.3…
20 codes
- H16.301Unspecified interstitial keratitis, right eye
- H16.302Unspecified interstitial keratitis, left eye
- H16.303Unspecified interstitial keratitis, bilateral
- H16.309Unspecified interstitial keratitis, unspecified eye
- H16.311Corneal abscess, right eye
- H16.312Corneal abscess, left eye
- H16.313Corneal abscess, bilateral
- H16.319Corneal abscess, unspecified eye
- H16.321Diffuse interstitial keratitis, right eye
- H16.322Diffuse interstitial keratitis, left eye
- H16.323Diffuse interstitial keratitis, bilateral
- H16.329Diffuse interstitial keratitis, unspecified eye
- H16.331Sclerosing keratitis, right eye
- H16.332Sclerosing keratitis, left eye
- H16.333Sclerosing keratitis, bilateral
- H16.339Sclerosing keratitis, unspecified eye
- H16.391Other interstitial and deep keratitis, right eye
- H16.392Other interstitial and deep keratitis, left eye
- H16.393Other interstitial and deep keratitis, bilateral
- H16.399Other interstitial and deep keratitis, unspecified eye
H16.4…
20 codes
- H16.401Unspecified corneal neovascularization, right eye
- H16.402Unspecified corneal neovascularization, left eye
- H16.403Unspecified corneal neovascularization, bilateral
- H16.409Unspecified corneal neovascularization, unspecified eye
- H16.411Ghost vessels (corneal), right eye
- H16.412Ghost vessels (corneal), left eye
- H16.413Ghost vessels (corneal), bilateral
- H16.419Ghost vessels (corneal), unspecified eye
- H16.421Pannus (corneal), right eye
- H16.422Pannus (corneal), left eye
- H16.423Pannus (corneal), bilateral
- H16.429Pannus (corneal), unspecified eye
- H16.431Localized vascularization of cornea, right eye
- H16.432Localized vascularization of cornea, left eye
- H16.433Localized vascularization of cornea, bilateral
- H16.439Localized vascularization of cornea, unspecified eye
- H16.441Deep vascularization of cornea, right eye
- H16.442Deep vascularization of cornea, left eye
- H16.443Deep vascularization of cornea, bilateral
- H16.449Deep vascularization of cornea, unspecified eye
H16.8…
1 code
H16.9…
1 code
Outside the US? H16 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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