All ICD10 Codes

H21.34

Non-Billable
ChapterH00–H59
Ranksubcategory
Official Description

Primary cyst of pars plana

Use a more specific code (4 billable)
H21.341Primary cyst of pars plana, right eyeH21.342Primary cyst of pars plana, left eyeH21.343Primary cyst of pars plana, bilateralH21.349Primary cyst of pars plana, unspecified eye
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 7: Diseases of the Eye and Adnexa (H00-H59).
General instructions are available for the parent sections:
View CH7 NotesView H21 NotesView H21.3 Notes

Clinical Hierarchy

BillableHas subcodes
CH7Diseases of the eye and adnexa (H00-H59)
H15-H22Disorders of sclera, cornea, iris and ciliary body (H15-H22)
H21Other disorders of iris and ciliary body
H21.3Cyst of iris, ciliary body and anterior chamber
H21.34Primary cyst of pars planaNot billable
H21.341Primary cyst of pars plana, right eyeBillable
H21.342Primary cyst of pars plana, left eyeBillable
H21.343Primary cyst of pars plana, bilateralBillable
H21.349Primary cyst of pars plana, unspecified eyeBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H21.34:

subcategoryH21.3
Cyst of iris, ciliary body and anterior chamber
View context instructions
categoryH21
Other disorders of iris and ciliary body
View context instructions
chapterCH7
Diseases of the eye and adnexa (H00-H59)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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