ICD-9 Diagnosis Code 366.8

Cataract NEC

Diagnosis Code 366.8

ICD-9: 366.8
Short Description: Cataract NEC
Long Description: Other cataract
This is the 2014 version of the ICD-9-CM diagnosis code 366.8

Code Classification
  • Diseases of the sense organs (360–389)
    • Disorders of the eye and adnexa (360-379)
      • 366 Cataract

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
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.

  • Adherent cataract
  • Anterior capsular lens opacities
  • Anterior lens opacities
  • Atopic cataract
  • Axial cataract
  • Calcified cataract
  • Capsular and/or subcapsular cataract
  • Immature cortical cataract
  • Malnutrition-dehydration cataract
  • Mixed type cataract
  • Partial cataract
  • Posterior subcapsular lens opacities
  • Postoperative cataract syndrome
  • Stationary cataract
  • Subcapsular cataract
  • Suture tip cataract
  • Toxic cataract not due to drugs

Index of Diseases and Injuries
References found for the code 366.8 in the Index of Diseases and Injuries:

Information for Patients


A cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.

A cataract can occur in either or both eyes. It cannot spread from one eye to the other. Common symptoms are

  • Blurry vision
  • Colors that seem faded
  • Glare - headlights, lamps or sunlight may seem too bright. You may also see a halo around lights.
  • Not being able to see well at night
  • Double vision
  • Frequent prescription changes in your eye wear

Cataracts usually develop slowly. New glasses, brighter lighting, anti-glare sunglasses or magnifying lenses can help at first. Surgery is also an option. It involves removing the cloudy lens and replacing it with an artificial lens. Wearing sunglasses and a hat with a brim to block ultraviolet sunlight may help to delay cataracts.

NIH: National Eye Institute

  • Cataract
  • Cataract removal
  • Slit-lamp exam
  • Standard ophthalmic exam

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