ICD-9-CM Volume 2 Index entries containing back-references to 
370.9:
- Inflammation, inflamed, inflammatory (with exudation) cornea (see also Keratitis) 370.9 cornea (see also Keratitis) 370.9  with ulcer (see also Ulcer, cornea) 370.00 with ulcer (see also Ulcer, cornea) 370.00 
 
 
- Keratitis (nodular) (nonulcerative) (simple) (zonular) NEC 370.9 with ulceration (see also Ulcer, cornea) 370.00 with ulceration (see also Ulcer, cornea) 370.00 
  deep - see Keratitis, interstitial deep - see Keratitis, interstitial
  gonococcal (congenital) (prenatal) 098.43 gonococcal (congenital) (prenatal) 098.43 
  herpes, herpetic (simplex) NEC 054.43 herpes, herpetic (simplex) NEC 054.43 
  in in
  interstitial (nonsyphilitic) 370.50 interstitial (nonsyphilitic) 370.50   with ulcer (see also Ulcer, cornea) 370.00 with ulcer (see also Ulcer, cornea) 370.00 
  diffuse 370.52 diffuse 370.52 
  herpes, herpetic (simplex) 054.43 herpes, herpetic (simplex) 054.43 
  syphilitic (congenital) (hereditary) 090.3 syphilitic (congenital) (hereditary) 090.3 
  tuberculous (see also Tuberculosis) 017.3 tuberculous (see also Tuberculosis) 017.3 [370.59 [370.59 ] ]
 
  parenchymatous - see Keratitis, interstitial parenchymatous - see Keratitis, interstitial
  pustuliformis profunda 090.3 pustuliformis profunda 090.3 
  superficial 370.20 superficial 370.20   with conjunctivitis (see also Keratoconjunctivitis) 370.40 with conjunctivitis (see also Keratoconjunctivitis) 370.40 
  punctate (Thygeson's) 370.21 punctate (Thygeson's) 370.21 
 
  syphilitic (congenital) (prenatal) 090.3 syphilitic (congenital) (prenatal) 090.3 
  tuberculous (phlyctenular) (see also Tuberculosis) 017.3 tuberculous (phlyctenular) (see also Tuberculosis) 017.3 [370.31 [370.31 ] ]
  ulcerated (see also Ulcer, cornea) 370.00 ulcerated (see also Ulcer, cornea) 370.00 
  xerotic (see also Keratomalacia) 371.45 xerotic (see also Keratomalacia) 371.45   vitamin A deficiency 264.4 vitamin A deficiency 264.4 
 
 
- Opacity, opacities cornea 371.00 cornea 371.00   central 371.03 central 371.03 
  congenital 743.43 congenital 743.43    interfering with vision 743.42 interfering with vision 743.42 
 
  degenerative (see also Degeneration, cornea) 371.40 degenerative (see also Degeneration, cornea) 371.40 
  hereditary (see also Dystrophy, cornea) 371.50 hereditary (see also Dystrophy, cornea) 371.50 
  inflammatory (see also Keratitis) 370.9 inflammatory (see also Keratitis) 370.9
  late effect of trachoma (healed) 139.1 late effect of trachoma (healed) 139.1 
  minor 371.01 minor 371.01 
  peripheral 371.02 peripheral 371.02