ICD-10-CM H16: Keratitis

ICD-10-CM Diagnosis Code (2025)

Official Description for H16

Keratitis

Coding Notes & Guidelines for H16

Excludes1: Not Coded Here

Sjögren's syndrome (M35.01)

Excludes1: Not Coded Here

vernal conjunctivitis without limbar and corneal involvement (H10.44)

Inclusion Terms
  • Areolar keratitis
  • Nummular keratitis
  • Stellate keratitis
  • Striate keratitis
Inclusion Terms
  • Snow blindness
  • Welders keratitis
Inclusion Terms

Superficial keratitis with conjunctivitis NOS

Inclusion Terms

Cogan's syndrome

Child Codes (More Specific Codes for H16):

H16.0 - Corneal ulcer H16.00 - Unspecified corneal ulcer H16.001 - Unspecified corneal ulcer, right eye H16.002 - Unspecified corneal ulcer, left eye H16.003 - Unspecified corneal ulcer, bilateral H16.009 - Unspecified corneal ulcer, unspecified eye H16.01 - Central corneal ulcer H16.011 - Central corneal ulcer, right eye H16.012 - Central corneal ulcer, left eye H16.013 - Central corneal ulcer, bilateral H16.019 - Central corneal ulcer, unspecified eye H16.02 - Ring corneal ulcer H16.021 - Ring corneal ulcer, right eye H16.022 - Ring corneal ulcer, left eye H16.023 - Ring corneal ulcer, bilateral H16.029 - Ring corneal ulcer, unspecified eye H16.03 - Corneal ulcer with hypopyon H16.031 - Corneal ulcer with hypopyon, right eye H16.032 - Corneal ulcer with hypopyon, left eye H16.033 - Corneal ulcer with hypopyon, bilateral H16.039 - Corneal ulcer with hypopyon, unspecified eye H16.04 - Marginal corneal ulcer H16.041 - Marginal corneal ulcer, right eye H16.042 - Marginal corneal ulcer, left eye H16.043 - Marginal corneal ulcer, bilateral H16.049 - Marginal corneal ulcer, unspecified eye H16.05 - Mooren's corneal ulcer 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 H16.06 - Mycotic corneal ulcer 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 H16.07 - Perforated corneal ulcer 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 H16.1 - Other and unspecified superficial keratitis without conjunctivitis H16.10 - Unspecified superficial keratitis 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 H16.11 - Macular keratitis H16.111 - Macular keratitis, right eye H16.112 - Macular keratitis, left eye H16.113 - Macular keratitis, bilateral H16.119 - Macular keratitis, unspecified eye H16.12 - Filamentary keratitis H16.121 - Filamentary keratitis, right eye H16.122 - Filamentary keratitis, left eye H16.123 - Filamentary keratitis, bilateral H16.129 - Filamentary keratitis, unspecified eye H16.13 - Photokeratitis H16.131 - Photokeratitis, right eye H16.132 - Photokeratitis, left eye H16.133 - Photokeratitis, bilateral H16.139 - Photokeratitis, unspecified eye H16.14 - Punctate keratitis H16.141 - Punctate keratitis, right eye H16.142 - Punctate keratitis, left eye H16.143 - Punctate keratitis, bilateral H16.149 - Punctate keratitis, unspecified eye H16.2 - Keratoconjunctivitis H16.20 - Unspecified keratoconjunctivitis H16.201 - Unspecified keratoconjunctivitis, right eye H16.202 - Unspecified keratoconjunctivitis, left eye H16.203 - Unspecified keratoconjunctivitis, bilateral H16.209 - Unspecified keratoconjunctivitis, unspecified eye H16.21 - Exposure keratoconjunctivitis H16.211 - Exposure keratoconjunctivitis, right eye H16.212 - Exposure keratoconjunctivitis, left eye H16.213 - Exposure keratoconjunctivitis, bilateral H16.219 - Exposure keratoconjunctivitis, unspecified eye H16.22 - Keratoconjunctivitis sicca, not specified as Sjögren's H16.221 - Keratoconjunctivitis sicca, not specified as Sjögren's, right eye H16.222 - Keratoconjunctivitis sicca, not specified as Sjögren's, left eye H16.223 - Keratoconjunctivitis sicca, not specified as Sjögren's, bilateral H16.229 - Keratoconjunctivitis sicca, not specified as Sjögren's, unspecified eye H16.23 - Neurotrophic keratoconjunctivitis H16.231 - Neurotrophic keratoconjunctivitis, right eye H16.232 - Neurotrophic keratoconjunctivitis, left eye H16.233 - Neurotrophic keratoconjunctivitis, bilateral H16.239 - Neurotrophic keratoconjunctivitis, unspecified eye H16.24 - Ophthalmia nodosa H16.241 - Ophthalmia nodosa, right eye H16.242 - Ophthalmia nodosa, left eye H16.243 - Ophthalmia nodosa, bilateral 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 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 H16.29 - Other keratoconjunctivitis H16.291 - Other keratoconjunctivitis, right eye H16.292 - Other keratoconjunctivitis, left eye H16.293 - Other keratoconjunctivitis, bilateral H16.299 - Other keratoconjunctivitis, unspecified eye H16.3 - Interstitial and deep keratitis H16.30 - Unspecified interstitial keratitis 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 H16.31 - Corneal abscess H16.311 - Corneal abscess, right eye H16.312 - Corneal abscess, left eye H16.313 - Corneal abscess, bilateral H16.319 - Corneal abscess, unspecified eye H16.32 - Diffuse interstitial keratitis 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 H16.33 - Sclerosing keratitis H16.331 - Sclerosing keratitis, right eye H16.332 - Sclerosing keratitis, left eye H16.333 - Sclerosing keratitis, bilateral H16.339 - Sclerosing keratitis, unspecified eye H16.39 - Other interstitial and deep keratitis 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 H16.4 - Corneal neovascularization H16.40 - Unspecified corneal neovascularization 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 H16.41 - Ghost vessels (corneal) 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 H16.42 - Pannus (corneal) H16.421 - Pannus (corneal), right eye H16.422 - Pannus (corneal), left eye H16.423 - Pannus (corneal), bilateral H16.429 - Pannus (corneal), unspecified eye H16.43 - Localized vascularization of cornea 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 H16.44 - Deep vascularization of cornea 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 H16.8 - Other keratitis H16.9 - Unspecified keratitis

About ICD-10-CM Code H16 (Keratitis)

ICD-10-CM code H16 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM H16 became effective on October 1, 2024.

This page provides detailed information about H16 - Keratitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Keratitis.