H21.339 Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye
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The ICD-10-CM code for Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye is H21.339 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- H15-H22: Disorders of sclera, cornea, iris and ciliary body (H15-H22)
- Category H21
- 126 codes (97 billable)
- FY2026 Status
- Stable since FY2024
Official Coding Guidelines
Glaucoma (TOC entry)a. Glaucoma .............................................................................................................................. 48
Assigning glaucoma codes (use as many H40 codes as needed)Assign as many codes from category H40, Glaucoma, as needed to identify the type of glaucoma, the affected eye, and the glaucoma stage.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference H21.339 with the canonical source and edition:
H21.339 — Parasitic cyst of iris, ciliary body or anterior chamber, unspecified eye. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/H21.339
Canonical URL: https://icd10codingpro.com/codes/H21.339