Chorioretinal disorders in diseases classified elsewhere
In Disorders of choroid and retina (H30-H36), chapter 7: Diseases of the Eye and Adnexa
- H32 is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under H30-H36 below.
- As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.
- Doesn't count toward a Medicare Advantage risk score (no HCC in V28).
- AHRQ's Chronic Condition Indicator classes it as chronic: expected to last 12 months or longer and to limit daily life or need ongoing care.
- Can't be the principal diagnosis: code the underlying condition first. (Manifestation list)
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Instructional notes
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.
Other codes under H30-H36
Disorders of choroid and retina (H30-H36)
- H30Chorioretinal inflammation
- H31Other disorders of choroid
- H32Chorioretinal disorders in diseases classified elsewhere(this code)
- H33Retinal detachments and breaks
- H34Retinal vascular occlusions
- H35Other retinal disorders
- H36Retinal disorders in diseases classified elsewhere
H32 MS-DRGs
As the principal diagnosis, H32 groups 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.
Related conditions
Grouped by AHRQ's Clinical Classifications Software Refined (CCSR), which sorts every diagnosis code into clinically meaningful categories.
H32 is in Retinal and vitreous conditions (EYE005), with 697 codes. Others in it:
- A18.53 Tuberculous chorioretinitis
- A50.32 Late congenital syphilitic chorioretinitis
- B58.01 Toxoplasma chorioretinitis
- E08.311 Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy with macular edema
- E08.319 Diabetes mellitus due to underlying condition with unspecified diabetic retinopathy without macular edema
- E08.3211 Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema, right eye
- E08.3212 Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema, left eye
- E08.3213 Diabetes mellitus due to underlying condition with mild nonproliferative diabetic retinopathy with macular edema, bilateral
Medicare coverage articles listing H32
These 8 Medicare billing and coding articles list H32 as a diagnosis that supports medical necessity for the services they cover. From the CMS Medicare Coverage Database; check your own contractor's article before billing.
- Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI) (6 contractors)
- Ophthalmic Angiography (Fluorescein and Indocyanine Green) (2 contractors)
- Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography) (2 contractors)
- Visual Fields Testing (2 contractors)
- Intraocular Bevacizumab
- Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
- Visual Field Examination
- Visual Fields
Other codes that refer to H32
Notes on these codes point to H32.
- B39 Use Additional Code: retinitis (H32)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Eye Diseases
Even if your eyes feel healthy, you could have a problem and not know it. That's why regular eye exams are so important. Refractive errors are the most common type of vision problem that makes it hard to see clearly. But some eye conditions or diseases don't have any symptoms and can lead to a permanent loss of vision.
Read more about eye diseases on MedlinePlusRetinal 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 MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.
ICD-9-CM equivalent
Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).
- 363.8 Other disorders of choroid (approximate)