2022 ICD-10-CM Code H34.8321

Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization

Version 2021

Valid for Submission

ICD-10:H34.8321
Short Description:Trib rtnl vein occlusion, left eye, w rtnl neovas
Long Description:Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization

Code Classification

  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of choroid and retina (H30-H36)
      • Retinal vascular occlusions (H34)

H34.8321 is a billable diagnosis code used to specify a medical diagnosis of tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization. The code H34.8321 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H34.8321 might also be used to specify conditions or terms like retinal neovascularization due to occlusion of branch of retinal vein of left eye.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Replacement Code

H348321 replaces the following previously assigned ICD-10 code(s):

Convert H34.8321 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code H34.8321 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

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


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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