DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

H16 Keratitis

  • Header · not billable

H16 is not billable. The category heads 126 billable codes in FY2027, grouped under 7 subdivisions.

Index → code

Where it sits

  1. Chapter 7 Diseases of the eye and adnexa (H00-H59)
  2. H15-H22 Disorders of sclera, cornea, iris and ciliary body (H15-H22)
  3. H16 Keratitis
Billable codes
126
Subdivisions
7
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
50

Codes in H16

  1. H16.0
    Corneal ulcer
    Header
  2. H16.00
    Unspecified corneal ulcer
    Header
  3. H16.001
    Unspecified corneal ulcer, right eye
    Billable
  4. H16.002
    Unspecified corneal ulcer, left eye
    Billable
  5. H16.003
    Unspecified corneal ulcer, bilateral
    Billable
  6. H16.009
    Unspecified corneal ulcer, unspecified eye
    Billable
  7. H16.01
    Central corneal ulcer
    Header
  8. H16.011
    Central corneal ulcer, right eye
    Billable
  9. H16.012
    Central corneal ulcer, left eye
    Billable
  10. H16.013
    Central corneal ulcer, bilateral
    Billable
  11. H16.019
    Central corneal ulcer, unspecified eye
    Billable
  12. H16.02
    Ring corneal ulcer
    Header
  13. H16.021
    Ring corneal ulcer, right eye
    Billable
  14. H16.022
    Ring corneal ulcer, left eye
    Billable
  15. H16.023
    Ring corneal ulcer, bilateral
    Billable
  16. H16.029
    Ring corneal ulcer, unspecified eye
    Billable
  17. H16.03
    Corneal ulcer with hypopyon
    Header
  18. H16.031
    Corneal ulcer with hypopyon, right eye
    Billable
  19. H16.032
    Corneal ulcer with hypopyon, left eye
    Billable
  20. H16.033
    Corneal ulcer with hypopyon, bilateral
    Billable
  21. H16.039
    Corneal ulcer with hypopyon, unspecified eye
    Billable
  22. H16.04
    Marginal corneal ulcer
    Header
  23. H16.041
    Marginal corneal ulcer, right eye
    Billable
  24. H16.042
    Marginal corneal ulcer, left eye
    Billable
  25. H16.043
    Marginal corneal ulcer, bilateral
    Billable
  26. H16.049
    Marginal corneal ulcer, unspecified eye
    Billable
  27. H16.05
    Mooren's corneal ulcer
    Header
  28. H16.051
    Mooren's corneal ulcer, right eye
    Billable
  29. H16.052
    Mooren's corneal ulcer, left eye
    Billable
  30. H16.053
    Mooren's corneal ulcer, bilateral
    Billable
  31. H16.059
    Mooren's corneal ulcer, unspecified eye
    Billable
  32. H16.06
    Mycotic corneal ulcer
    Header
  33. H16.061
    Mycotic corneal ulcer, right eye
    Billable
  34. H16.062
    Mycotic corneal ulcer, left eye
    Billable
  35. H16.063
    Mycotic corneal ulcer, bilateral
    Billable
  36. H16.069
    Mycotic corneal ulcer, unspecified eye
    Billable
  37. H16.07
    Perforated corneal ulcer
    Header
  38. H16.071
    Perforated corneal ulcer, right eye
    Billable
  39. H16.072
    Perforated corneal ulcer, left eye
    Billable
  40. H16.073
    Perforated corneal ulcer, bilateral
    Billable
  41. H16.079
    Perforated corneal ulcer, unspecified eye
    Billable
  42. H16.1
    Other and unspecified superficial keratitis without conjunctivitis
    Header
  43. H16.10
    Unspecified superficial keratitis
    Header
  44. H16.101
    Unspecified superficial keratitis, right eye
    Billable
  45. H16.102
    Unspecified superficial keratitis, left eye
    Billable
  46. H16.103
    Unspecified superficial keratitis, bilateral
    Billable
  47. H16.109
    Unspecified superficial keratitis, unspecified eye
    Billable
  48. H16.11
    Macular keratitis
    Header
    Inclusion terms 4

    Inclusion terms

    • Areolar keratitis
    • Nummular keratitis
    • Stellate keratitis
    • Striate keratitis
  49. H16.111
    Macular keratitis, right eye
    Billable
  50. H16.112
    Macular keratitis, left eye
    Billable
  51. H16.113
    Macular keratitis, bilateral
    Billable
  52. H16.119
    Macular keratitis, unspecified eye
    Billable
  53. H16.12
    Filamentary keratitis
    Header
  54. H16.121
    Filamentary keratitis, right eye
    Billable
  55. H16.122
    Filamentary keratitis, left eye
    Billable
  56. H16.123
    Filamentary keratitis, bilateral
    Billable
  57. H16.129
    Filamentary keratitis, unspecified eye
    Billable
  58. H16.13
    Photokeratitis
    Header
    Inclusion terms 2

    Inclusion terms

    • Snow blindness
    • Welders keratitis
  59. H16.131
    Photokeratitis, right eye
    Billable
  60. H16.132
    Photokeratitis, left eye
    Billable
  61. H16.133
    Photokeratitis, bilateral
    Billable
  62. H16.139
    Photokeratitis, unspecified eye
    Billable
  63. H16.14
    Punctate keratitis
    Header
  64. H16.141
    Punctate keratitis, right eye
    Billable
  65. H16.142
    Punctate keratitis, left eye
    Billable
  66. H16.143
    Punctate keratitis, bilateral
    Billable
  67. H16.149
    Punctate keratitis, unspecified eye
    Billable
  68. H16.2
    Keratoconjunctivitis
    Header
  69. H16.20
    Unspecified keratoconjunctivitis
    Header
    Inclusion terms 1

    Inclusion terms

    • Superficial keratitis with conjunctivitis NOS
  70. H16.201
    Unspecified keratoconjunctivitis, right eye
    Billable
  71. H16.202
    Unspecified keratoconjunctivitis, left eye
    Billable
  72. H16.203
    Unspecified keratoconjunctivitis, bilateral
    Billable
  73. H16.209
    Unspecified keratoconjunctivitis, unspecified eye
    Billable
  74. H16.21
    Exposure keratoconjunctivitis
    Header
  75. H16.211
    Exposure keratoconjunctivitis, right eye
    Billable
  76. H16.212
    Exposure keratoconjunctivitis, left eye
    Billable
  77. H16.213
    Exposure keratoconjunctivitis, bilateral
    Billable
  78. H16.219
    Exposure keratoconjunctivitis, unspecified eye
    Billable
  79. H16.22
    Keratoconjunctivitis sicca, not specified as Sjögren's
    Header
    Excludes1 1

    Excludes1

    • Sjögren's syndrome (M35.01) M35.01
  80. H16.221
    Keratoconjunctivitis sicca, not specified as Sjögren's, right eye
    Billable
  81. H16.222
    Keratoconjunctivitis sicca, not specified as Sjögren's, left eye
    Billable
  82. H16.223
    Keratoconjunctivitis sicca, not specified as Sjögren's, bilateral
    Billable
  83. H16.229
    Keratoconjunctivitis sicca, not specified as Sjögren's, unspecified eye
    Billable
  84. H16.23
    Neurotrophic keratoconjunctivitis
    Header
  85. H16.231
    Neurotrophic keratoconjunctivitis, right eye
    Billable
  86. H16.232
    Neurotrophic keratoconjunctivitis, left eye
    Billable
  87. H16.233
    Neurotrophic keratoconjunctivitis, bilateral
    Billable
  88. H16.239
    Neurotrophic keratoconjunctivitis, unspecified eye
    Billable
  89. H16.24
    Ophthalmia nodosa
    Header
  90. H16.241
    Ophthalmia nodosa, right eye
    Billable
  91. H16.242
    Ophthalmia nodosa, left eye
    Billable
  92. H16.243
    Ophthalmia nodosa, bilateral
    Billable
  93. H16.249
    Ophthalmia nodosa, unspecified eye
    Billable
  94. H16.25
    Phlyctenular keratoconjunctivitis
    Header
  95. H16.251
    Phlyctenular keratoconjunctivitis, right eye
    Billable
  96. H16.252
    Phlyctenular keratoconjunctivitis, left eye
    Billable
  97. H16.253
    Phlyctenular keratoconjunctivitis, bilateral
    Billable
  98. H16.259
    Phlyctenular keratoconjunctivitis, unspecified eye
    Billable
  99. H16.26
    Vernal keratoconjunctivitis, with limbar and corneal involvement
    Header
    Excludes1 1

    Excludes1

    • vernal conjunctivitis without limbar and corneal involvement (H10.44) H10.44
  100. H16.261
    Vernal keratoconjunctivitis, with limbar and corneal involvement, right eye
    Billable
  101. H16.262
    Vernal keratoconjunctivitis, with limbar and corneal involvement, left eye
    Billable
  102. H16.263
    Vernal keratoconjunctivitis, with limbar and corneal involvement, bilateral
    Billable
  103. H16.269
    Vernal keratoconjunctivitis, with limbar and corneal involvement, unspecified eye
    Billable
  104. H16.29
    Other keratoconjunctivitis
    Header
  105. H16.291
    Other keratoconjunctivitis, right eye
    Billable
  106. H16.292
    Other keratoconjunctivitis, left eye
    Billable
  107. H16.293
    Other keratoconjunctivitis, bilateral
    Billable
  108. H16.299
    Other keratoconjunctivitis, unspecified eye
    Billable
  109. H16.3
    Interstitial and deep keratitis
    Header
  110. H16.30
    Unspecified interstitial keratitis
    Header
  111. H16.301
    Unspecified interstitial keratitis, right eye
    Billable
  112. H16.302
    Unspecified interstitial keratitis, left eye
    Billable
  113. H16.303
    Unspecified interstitial keratitis, bilateral
    Billable
  114. H16.309
    Unspecified interstitial keratitis, unspecified eye
    Billable
  115. H16.31
    Corneal abscess
    Header
  116. H16.311
    Corneal abscess, right eye
    Billable
  117. H16.312
    Corneal abscess, left eye
    Billable
  118. H16.313
    Corneal abscess, bilateral
    Billable
  119. H16.319
    Corneal abscess, unspecified eye
    Billable
  120. H16.32
    Diffuse interstitial keratitis
    Header
    Inclusion terms 1

    Inclusion terms

    • Cogan's syndrome
  121. H16.321
    Diffuse interstitial keratitis, right eye
    Billable
  122. H16.322
    Diffuse interstitial keratitis, left eye
    Billable
  123. H16.323
    Diffuse interstitial keratitis, bilateral
    Billable
  124. H16.329
    Diffuse interstitial keratitis, unspecified eye
    Billable
  125. H16.33
    Sclerosing keratitis
    Header
  126. H16.331
    Sclerosing keratitis, right eye
    Billable
  127. H16.332
    Sclerosing keratitis, left eye
    Billable
  128. H16.333
    Sclerosing keratitis, bilateral
    Billable
  129. H16.339
    Sclerosing keratitis, unspecified eye
    Billable
  130. H16.39
    Other interstitial and deep keratitis
    Header
  131. H16.391
    Other interstitial and deep keratitis, right eye
    Billable
  132. H16.392
    Other interstitial and deep keratitis, left eye
    Billable
  133. H16.393
    Other interstitial and deep keratitis, bilateral
    Billable
  134. H16.399
    Other interstitial and deep keratitis, unspecified eye
    Billable
  135. H16.4
    Corneal neovascularization
    Header
  136. H16.40
    Unspecified corneal neovascularization
    Header
  137. H16.401
    Unspecified corneal neovascularization, right eye
    Billable
  138. H16.402
    Unspecified corneal neovascularization, left eye
    Billable
  139. H16.403
    Unspecified corneal neovascularization, bilateral
    Billable
  140. H16.409
    Unspecified corneal neovascularization, unspecified eye
    Billable
  141. H16.41
    Ghost vessels (corneal)
    Header
  142. H16.411
    Ghost vessels (corneal), right eye
    Billable
  143. H16.412
    Ghost vessels (corneal), left eye
    Billable
  144. H16.413
    Ghost vessels (corneal), bilateral
    Billable
  145. H16.419
    Ghost vessels (corneal), unspecified eye
    Billable
  146. H16.42
    Pannus (corneal)
    Header
  147. H16.421
    Pannus (corneal), right eye
    Billable
  148. H16.422
    Pannus (corneal), left eye
    Billable
  149. H16.423
    Pannus (corneal), bilateral
    Billable
  150. H16.429
    Pannus (corneal), unspecified eye
    Billable
  151. H16.43
    Localized vascularization of cornea
    Header
  152. H16.431
    Localized vascularization of cornea, right eye
    Billable
  153. H16.432
    Localized vascularization of cornea, left eye
    Billable
  154. H16.433
    Localized vascularization of cornea, bilateral
    Billable
  155. H16.439
    Localized vascularization of cornea, unspecified eye
    Billable
  156. H16.44
    Deep vascularization of cornea
    Header
  157. H16.441
    Deep vascularization of cornea, right eye
    Billable
  158. H16.442
    Deep vascularization of cornea, left eye
    Billable
  159. H16.443
    Deep vascularization of cornea, bilateral
    Billable
  160. H16.449
    Deep vascularization of cornea, unspecified eye
    Billable
  161. H16.8
    Other keratitis
    Billable
  162. H16.9
    Unspecified keratitis
    Billable

Sources of each column.

Instructions

Notes that also apply

Chapter 7 instructions (Notes 1, Excludes2 11): printed on the chapter 7 page.

Index entries

  • Photokeratitis → H16.13-
  • Keratoconjunctivitis → H16.20-
  • Cogan's syndrome → H16.32-
  • Pannus (allergic) (cornea) (degenerativus) (keratic) → H16.42-
  • Sclerokeratitis → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular) → H16.9
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativecornea → H16.00-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)superficial → H16.10-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)areolar → H16.11-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)macular → H16.11-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)nummular → H16.11-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)stellate → H16.11-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)striate → H16.11-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)filamentary → H16.12-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)punctate → H16.14-
  • Keratoconjunctivitisexposure → H16.21-
  • Keratoconjunctivitisneurotrophic → H16.23-
  • Ophthalmianodosa → H16.24-
  • Keratoconjunctivitisphlyctenular → H16.25-
  • Keratoconjunctivitisvernal → H16.26-
  • Keratoconjunctivitisspecified type NEC → H16.29-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)interstitial (nonsyphilitic) → H16.30-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)deep → H16.309
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)cornea → H16.31-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)sclerosing → H16.33-
  • Neovascularizationcornea → H16.40-
  • Ghostvessels (cornea) → H16.41-
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)bullosa → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)oyster shuckers' → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)petrificans → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)purulent → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)specified type NEC → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)suppurative → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)vesicular → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)xerotic → H16.8
  • Keratitis (nodular) (nonulcerative) (simple) (zonular)punctataleprosa → A30.9 [H16.14-]
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativecorneacentral → H16.01-
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativecornearing → H16.02-
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativecorneawith hypopyon → H16.03-
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativecorneamarginal → H16.04-

10 more, longer entries are not listed; the search box finds them by word.

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