2022 ICD-10-CM Code H33.10

Unspecified retinoschisis

Version 2021

Not Valid for Submission

ICD-10:H33.10
Short Description:Unspecified retinoschisis
Long Description:Unspecified retinoschisis

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of choroid and retina (H30-H36)
      • Retinal detachments and breaks (H33)

H33.10 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of unspecified retinoschisis. The code is not specific and is NOT valid for the year 2022 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like H33.10 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Specific Coding for Unspecified retinoschisis

Non-specific codes like H33.10 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for unspecified retinoschisis:

  • BILLABLE CODE - Use H33.101 for Unspecified retinoschisis, right eye
  • BILLABLE CODE - Use H33.102 for Unspecified retinoschisis, left eye
  • BILLABLE CODE - Use H33.103 for Unspecified retinoschisis, bilateral
  • BILLABLE CODE - Use H33.109 for Unspecified retinoschisis, unspecified eye

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code H33.10 are found in the index:

Clinical Information

Information for Patients


Retinal Disorders

The retina is a layer of tissue in the back of your eye that senses light and sends images to your brain. In the center of this nerve tissue is the macula. It provides the sharp, central vision needed for reading, driving and seeing fine detail.

Retinal disorders affect this vital tissue. They can affect your vision, and some can be serious enough to cause blindness. Examples are

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)