ICD-10 Diagnosis Code H26.9

Unspecified cataract

Diagnosis Code H26.9

ICD-10: H26.9
Short Description: Unspecified cataract
Long Description: Unspecified cataract
This is the 2017 version of the ICD-10-CM diagnosis code H26.9

Code Classification
  • Diseases of the eye and adnexa
    • Disorders of lens (H25-H28)
      • Other cataract (H26)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code H26.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 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.

  • Bilateral cataracts
  • Cataract
  • Cataract of left eye
  • Cataract of right eye
  • Hypertrophic mitochondrial cardiomyopathy
  • Hypertrophic mitochondrial cardiomyopathy associated with cataracts and lactic acidosis
  • Immature cataract
  • Mitochondrial cardiomyopathy
  • On examination - cataract present
  • On examination - left cataract present
  • On examination - lens - early opacity
  • On examination - right cataract present
  • Opacification of intraocular lens
  • Partial cataract
  • Stationary cataract
  • Unilateral cataract

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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