All ICD10 Codes
H36Not billable, use a more specific code below

Retinal disorders in diseases classified elsewhere

In Disorders of choroid and retina (H30-H36), chapter 7: Diseases of the Eye and Adnexa

9 billable codes under H36: none are a CC or MCC; 8 map to HCC 108 (Sickle Cell Disorders, Except Sickle Cell Anemia (Hb-SS) and Thalassemia Beta Zero; Beta Thalassemia Major), HCC 298 (Severe Diabetic Eye Disease, Retinal Vein Occlusion, and Vitreous Hemorrhage).An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Excludes1: not coded here, use a different code

Code first: code the underlying condition first, then this code

  • underlying disease, such as:
  • lipid storage disorders (E75.-)
  • sickle-cell disorders (D57.-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers coding glaucoma by type, eye, and stage, including bilateral cases and stage changes, and coding blindness or low vision when the impairment category is undocumented.

Read Section I.C.7 (page 48)

All codes under H36

H36 can't be used on a claim. Pick a billable code below; grey headings group them.

H36 MS-DRGs

As the principal diagnosis, all 9 billable codes under H36 group to MS-DRG 124 or 125 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Retinal Disorders

Retinal disorders are conditions that affect the retina, the thin light-sensitive tissue at the back of your eye. The retina senses light and sends signals to your brain so you can see.

Read more about retinal disorders on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015.

  • FY2024: Subcodes were added, so H36 is no longer billable on its own.

ICD-9-CM equivalent

Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).

  • 362.71 Retinal dystrophy in systemic or cerebroretinal lipidoses (approximate)
  • 362.72 Retinal dystrophy in other systemic disorders and syndromes (approximate)
ICD-9 to ICD-10 converter