H33.199 Other retinoschisis and retinal cysts, unspecified eye

Billable ICD-10-CM code, FY2026.

Applies from H33 Retinal detachments and breaks

Excludes1 (never code together)

• detachment of retinal pigment epithelium (H35.72-, H35.73-)

Applies from H33.1 Retinoschisis and retinal cysts

Excludes1 (never code together)

• congenital retinoschisis (Q14.1)
• microcystoid degeneration of retina (H35.42-)

Applies from H33.19 Other retinoschisis and retinal cysts

Applicable to

• Pseudocyst of retina

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 361.19 Other retinoschisis and retinal cysts (approximate)

Code annotations containing back-references to H33.199

Back-references to H33

• Use Additional: H44.2C Degenerative myopia with retinal detachment ("code to identify the retinal detachment (H33.-)")

Nearby codes

• H33.129 Parasitic cyst of retina, unspecified eye
• H33.19 Other retinoschisis and retinal cysts
• H33.191 Other retinoschisis and retinal cysts, right eye
• H33.192 Other retinoschisis and retinal cysts, left eye
• H33.193 Other retinoschisis and retinal cysts, bilateral
• H33.199 Other retinoschisis and retinal cysts, unspecified eye (this code)
• H33.2 Serous retinal detachment
• H33.20 Serous retinal detachment, unspecified eye
• H33.21 Serous retinal detachment, right eye
• H33.22 Serous retinal detachment, left eye
• H33.23 Serous retinal detachment, bilateral