ICD-10-CM category
H16: Keratitis
Codes under H16 (Keratitis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| H16.0 | Corneal ulcer | — |
| H16.00 | Unspecified corneal ulcer | — |
| H16.001 | Unspecified corneal ulcer, right eye | ✓ |
| H16.01 | Central corneal ulcer | — |
| H16.1 | Other and unspecified superficial keratitis without conjunctivitis | — |
| H16.002 | Unspecified corneal ulcer, left eye | ✓ |
| H16.02 | Ring corneal ulcer | — |
| H16.2 | Keratoconjunctivitis | — |
| H16.003 | Unspecified corneal ulcer, bilateral | ✓ |
| H16.03 | Corneal ulcer with hypopyon | — |
| H16.3 | Interstitial and deep keratitis | — |
| H16.04 | Marginal corneal ulcer | — |
| H16.4 | Corneal neovascularization | — |
| H16.05 | Mooren's corneal ulcer | — |
| H16.06 | Mycotic corneal ulcer | — |
| H16.07 | Perforated corneal ulcer | — |
| H16.8 | Other keratitis | ✓ |
| H16.009 | Unspecified corneal ulcer, unspecified eye | ✓ |
| H16.9 | Unspecified keratitis | ✓ |
| H16.10 | Unspecified superficial keratitis | — |
| H16.011 | Central corneal ulcer, right eye | ✓ |
| H16.11 | Macular keratitis | — |
| H16.012 | Central corneal ulcer, left eye | ✓ |
| H16.12 | Filamentary keratitis | — |
| H16.013 | Central corneal ulcer, bilateral | ✓ |
| H16.13 | Photokeratitis | — |
| H16.14 | Punctate keratitis | — |
| H16.019 | Central corneal ulcer, unspecified eye | ✓ |
| H16.20 | Unspecified keratoconjunctivitis | — |
| H16.021 | Ring corneal ulcer, right eye | ✓ |
| H16.21 | Exposure keratoconjunctivitis | — |
| H16.022 | Ring corneal ulcer, left eye | ✓ |
| H16.22 | Keratoconjunctivitis sicca, not specified as Sjogren's | — |
| H16.023 | Ring corneal ulcer, bilateral | ✓ |
| H16.23 | Neurotrophic keratoconjunctivitis | — |
| H16.24 | Ophthalmia nodosa | — |
| H16.25 | Phlyctenular keratoconjunctivitis | — |
| H16.26 | Vernal keratoconjunctivitis, with limbar and corneal involvement | — |
| H16.029 | Ring corneal ulcer, unspecified eye | ✓ |
| H16.29 | Other keratoconjunctivitis | — |
| H16.30 | Unspecified interstitial keratitis | — |
| H16.031 | Corneal ulcer with hypopyon, right eye | ✓ |
| H16.31 | Corneal abscess | — |
| H16.032 | Corneal ulcer with hypopyon, left eye | ✓ |
| H16.32 | Diffuse interstitial keratitis | — |
| H16.033 | Corneal ulcer with hypopyon, bilateral | ✓ |
| H16.33 | Sclerosing keratitis | — |
| H16.039 | Corneal ulcer with hypopyon, unspecified eye | ✓ |
| H16.39 | Other interstitial and deep keratitis | — |
| H16.40 | Unspecified corneal neovascularization | — |
| H16.041 | Marginal corneal ulcer, right eye | ✓ |
| H16.41 | Ghost vessels (corneal) | — |
| H16.042 | Marginal corneal ulcer, left eye | ✓ |
| H16.42 | Pannus (corneal) | — |
| H16.043 | Marginal corneal ulcer, bilateral | ✓ |
| H16.43 | Localized vascularization of cornea | — |
| H16.44 | Deep vascularization of cornea | — |
| H16.049 | Marginal corneal ulcer, unspecified eye | ✓ |
| H16.051 | Mooren's corneal ulcer, right eye | ✓ |
| H16.052 | Mooren's corneal ulcer, left eye | ✓ |
| H16.053 | Mooren's corneal ulcer, bilateral | ✓ |
| H16.059 | Mooren's corneal ulcer, unspecified eye | ✓ |
| H16.061 | Mycotic corneal ulcer, right eye | ✓ |
| H16.062 | Mycotic corneal ulcer, left eye | ✓ |
| H16.063 | Mycotic corneal ulcer, bilateral | ✓ |
| H16.069 | Mycotic corneal ulcer, unspecified eye | ✓ |
| H16.071 | Perforated corneal ulcer, right eye | ✓ |
| H16.072 | Perforated corneal ulcer, left eye | ✓ |
| H16.073 | Perforated corneal ulcer, bilateral | ✓ |
| H16.079 | Perforated corneal ulcer, unspecified eye | ✓ |
| H16.101 | Unspecified superficial keratitis, right eye | ✓ |
| H16.102 | Unspecified superficial keratitis, left eye | ✓ |
| H16.103 | Unspecified superficial keratitis, bilateral | ✓ |
| H16.109 | Unspecified superficial keratitis, unspecified eye | ✓ |
| H16.111 | Macular keratitis, right eye | ✓ |
| H16.112 | Macular keratitis, left eye | ✓ |
| H16.113 | Macular keratitis, bilateral | ✓ |
| H16.119 | Macular keratitis, unspecified eye | ✓ |
| H16.121 | Filamentary keratitis, right eye | ✓ |
| H16.122 | Filamentary keratitis, left eye | ✓ |
| H16.123 | Filamentary keratitis, bilateral | ✓ |
| H16.129 | Filamentary keratitis, unspecified eye | ✓ |
| H16.131 | Photokeratitis, right eye | ✓ |
| H16.132 | Photokeratitis, left eye | ✓ |
| H16.133 | Photokeratitis, bilateral | ✓ |
| H16.139 | Photokeratitis, unspecified eye | ✓ |
| H16.141 | Punctate keratitis, right eye | ✓ |
| H16.142 | Punctate keratitis, left eye | ✓ |
| H16.143 | Punctate keratitis, bilateral | ✓ |
| H16.149 | Punctate keratitis, unspecified eye | ✓ |
| H16.201 | Unspecified keratoconjunctivitis, right eye | ✓ |
| H16.202 | Unspecified keratoconjunctivitis, left eye | ✓ |
| H16.203 | Unspecified keratoconjunctivitis, bilateral | ✓ |
| H16.209 | Unspecified keratoconjunctivitis, unspecified eye | ✓ |
| H16.211 | Exposure keratoconjunctivitis, right eye | ✓ |
| H16.212 | Exposure keratoconjunctivitis, left eye | ✓ |
| H16.213 | Exposure keratoconjunctivitis, bilateral | ✓ |
| H16.219 | Exposure keratoconjunctivitis, unspecified eye | ✓ |
| H16.221 | Keratoconjunctivitis sicca, not specified as Sjogren's, right eye | ✓ |
| H16.222 | Keratoconjunctivitis sicca, not specified as Sjogren's, left eye | ✓ |
| H16.223 | Keratoconjunctivitis sicca, not specified as Sjogren's, bilateral | ✓ |
| H16.229 | Keratoconjunctivitis sicca, not specified as Sjogren's, unspecified eye | ✓ |
| H16.231 | Neurotrophic keratoconjunctivitis, right eye | ✓ |
| H16.232 | Neurotrophic keratoconjunctivitis, left eye | ✓ |
| H16.233 | Neurotrophic keratoconjunctivitis, bilateral | ✓ |
| H16.239 | Neurotrophic keratoconjunctivitis, unspecified eye | ✓ |
| H16.241 | Ophthalmia nodosa, right eye | ✓ |
| H16.242 | Ophthalmia nodosa, left eye | ✓ |
| H16.243 | Ophthalmia nodosa, bilateral | ✓ |
| H16.249 | Ophthalmia nodosa, unspecified eye | ✓ |
| H16.251 | Phlyctenular keratoconjunctivitis, right eye | ✓ |
| H16.252 | Phlyctenular keratoconjunctivitis, left eye | ✓ |
| H16.253 | Phlyctenular keratoconjunctivitis, bilateral | ✓ |
| H16.259 | Phlyctenular keratoconjunctivitis, unspecified eye | ✓ |
| 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 | ✓ |
| H16.291 | Other keratoconjunctivitis, right eye | ✓ |
| H16.292 | Other keratoconjunctivitis, left eye | ✓ |
| H16.293 | Other keratoconjunctivitis, bilateral | ✓ |
| H16.299 | Other keratoconjunctivitis, unspecified eye | ✓ |
| H16.301 | Unspecified interstitial keratitis, right eye | ✓ |
| H16.302 | Unspecified interstitial keratitis, left eye | ✓ |
| H16.303 | Unspecified interstitial keratitis, bilateral | ✓ |
| H16.309 | Unspecified interstitial keratitis, unspecified eye | ✓ |
| H16.311 | Corneal abscess, right eye | ✓ |
| H16.312 | Corneal abscess, left eye | ✓ |
| H16.313 | Corneal abscess, bilateral | ✓ |
| H16.319 | Corneal abscess, unspecified eye | ✓ |
| H16.321 | Diffuse interstitial keratitis, right eye | ✓ |
| H16.322 | Diffuse interstitial keratitis, left eye | ✓ |
| H16.323 | Diffuse interstitial keratitis, bilateral | ✓ |
| H16.329 | Diffuse interstitial keratitis, unspecified eye | ✓ |
| H16.331 | Sclerosing keratitis, right eye | ✓ |
| H16.332 | Sclerosing keratitis, left eye | ✓ |
| H16.333 | Sclerosing keratitis, bilateral | ✓ |
| H16.339 | Sclerosing keratitis, unspecified eye | ✓ |
| H16.391 | Other interstitial and deep keratitis, right eye | ✓ |
| H16.392 | Other interstitial and deep keratitis, left eye | ✓ |
| H16.393 | Other interstitial and deep keratitis, bilateral | ✓ |
| H16.399 | Other interstitial and deep keratitis, unspecified eye | ✓ |
| H16.401 | Unspecified corneal neovascularization, right eye | ✓ |
| H16.402 | Unspecified corneal neovascularization, left eye | ✓ |
| H16.403 | Unspecified corneal neovascularization, bilateral | ✓ |
| H16.409 | Unspecified corneal neovascularization, unspecified eye | ✓ |
| H16.411 | Ghost vessels (corneal), right eye | ✓ |
| H16.412 | Ghost vessels (corneal), left eye | ✓ |
| H16.413 | Ghost vessels (corneal), bilateral | ✓ |
| H16.419 | Ghost vessels (corneal), unspecified eye | ✓ |
| H16.421 | Pannus (corneal), right eye | ✓ |
| H16.422 | Pannus (corneal), left eye | ✓ |
| H16.423 | Pannus (corneal), bilateral | ✓ |
| H16.429 | Pannus (corneal), unspecified eye | ✓ |
| H16.431 | Localized vascularization of cornea, right eye | ✓ |
| H16.432 | Localized vascularization of cornea, left eye | ✓ |
| H16.433 | Localized vascularization of cornea, bilateral | ✓ |
| H16.439 | Localized vascularization of cornea, unspecified eye | ✓ |
| H16.441 | Deep vascularization of cornea, right eye | ✓ |
| H16.442 | Deep vascularization of cornea, left eye | ✓ |
| H16.443 | Deep vascularization of cornea, bilateral | ✓ |
| H16.449 | Deep vascularization of cornea, unspecified eye | ✓ |
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free