2021 ICD-10-CM Code H35.042

Retinal micro-aneurysms, unspecified, left eye

Version 2021
Billable Code
Unspecified Code
MS-DRG Mapping

Valid for Submission

H35.042 is a billable diagnosis code used to specify a medical diagnosis of retinal micro-aneurysms, unspecified, left eye. The code H35.042 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code H35.042 might also be used to specify conditions or terms like macroaneurysm of retina of left eye, microaneurysm of left retinal artery, microaneurysm of left retinal artery, microaneurysm of left retinal artery due to diabetes mellitus, microaneurysm of retinal artery , microaneurysm of retinal artery, etc.

Unspecified diagnosis codes like H35.042 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.

ICD-10:H35.042
Short Description:Retinal micro-aneurysms, unspecified, left eye
Long Description:Retinal micro-aneurysms, unspecified, left eye

Code Classification

Approximate Synonyms

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

Convert H35.042 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code H35.042 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
  • 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)