ICD-10 Diagnosis Code H18.899

Other specified disorders of cornea, unspecified eye

Diagnosis Code H18.899

ICD-10: H18.899
Short Description: Other specified disorders of cornea, unspecified eye
Long Description: Other specified disorders of cornea, unspecified eye
This is the 2017 version of the ICD-10-CM diagnosis code H18.899

Code Classification
  • Diseases of the eye and adnexa
    • Disorders of sclera, cornea, iris and ciliary body (H15-H22)
      • Other disorders of cornea (H18)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code H18.899 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Blister to cornea
  • Chrysiasis of cornea
  • Clouding of corneal stroma
  • Complication of laser surgery
  • Complication of refractive keratoplasty by laser surgery
  • Corneal decompensation
  • Corneal epithelial defect
  • Corneal epithelial ingrowth
  • Corneal fibrosis
  • Corneal hypoxia
  • Corneal immune ring
  • Corneal infection
  • Corneal iron deposits
  • Corneal iron line anterior to filtering bleb
  • Corneal melting disorder
  • Corneal stromal edema
  • Corneal stromal wrinkles
  • Corneal warpage
  • Cystic dermoid choristoma of cornea
  • Decentered corneal stromal ablation
  • Dermoid choristoma of eye proper
  • Drug-induced disorder of cornea
  • Epithelial inclusion cyst of cornea
  • Epithelial ingrowth
  • Epitheliitis
  • Glaucoma associated with anterior segment anomaly
  • Glaucoma associated with iridocorneal endothelial syndrome
  • Hemorrhage into cornea
  • Hypertrophy of corneal epithelium
  • Injury of sclera
  • Iridocorneal endothelial syndrome
  • Irregular astigmatism
  • Irregular astigmatism - corneal
  • Limbal stem cell deficiency
  • Lump at corneal limbus
  • Metallic pigmentation of cornea
  • Perforating corneoscleral wound
  • Perforating scleral wound
  • Perforation of cornea
  • Retrocorneal fibrous membrane
  • Rheumatoid melting disorder of cornea
  • Secondary angle-closure glaucoma
  • Secondary angle-closure glaucoma - synechial
  • Stromal corneal hemorrhage
  • Vortex keratopathy

Information for Patients

Corneal Disorders

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.

Problems with the cornea include

  • Refractive errors
  • Allergies
  • Infections
  • Injuries
  • Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material

Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery.

NIH: National Eye Institute

  • Cloudy cornea
  • Corneal injury
  • Corneal transplant
  • Corneal ulcers and infections
  • Fuchs dystrophy
  • Keratoconus

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