H33.12 Parasitic cyst of retina

Non-billable header with 4 child codes.

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-)

Codes under H33.12

• H33.121 Parasitic cyst of retina, right eye
• H33.122 Parasitic cyst of retina, left eye
• H33.123 Parasitic cyst of retina, bilateral
• H33.129 Parasitic cyst of retina, unspecified eye

Code annotations containing back-references to H33.12

Back-references to H33

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

Diagnosis Index entries for H33.12

• Cyst (colloid) (mucous) (simple) (retention) › retina › parasitic

Nearby codes

• H33.11 Cyst of ora serrata
• H33.111 Cyst of ora serrata, right eye
• H33.112 Cyst of ora serrata, left eye
• H33.113 Cyst of ora serrata, bilateral
• H33.119 Cyst of ora serrata, unspecified eye
• H33.12 Parasitic cyst of retina (this code)
• H33.121 Parasitic cyst of retina, right eye
• H33.122 Parasitic cyst of retina, left eye
• H33.123 Parasitic cyst of retina, bilateral
• H33.129 Parasitic cyst of retina, unspecified eye
• H33.19 Other retinoschisis and retinal cysts