H21.3
H21.3 — Cyst of iris, ciliary body and anterior chamber
Non-billable headerICD-10-CM
H21.3 is a non-billable header ICD-10-CM code for cyst of iris, ciliary body and anterior chamber. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- miotic pupillary cyst (H21.27-)
Risk adjustment
H21.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead H21.3
6 child codes. Green means billable.
- H21.30Idiopathic cysts of iris, ciliary body or anterior chamber
- H21.31Exudative cysts of iris or anterior chamber
- H21.32Implantation cysts of iris, ciliary body or anterior chamber
- H21.33Parasitic cyst of iris, ciliary body or anterior chamber
- H21.34Primary cyst of pars plana
- H21.35Exudative cyst of pars plana
Related codes at this level
Codes that share H21. If H21.3 is not quite right, the correct code is usually one of these.
- H21.0Hyphema
- H21.1Other vascular disorders of iris and ciliary body
- H21.2Degeneration of iris and ciliary body
- H21.4Pupillary membranes
- H21.5Other and unspecified adhesions and disruptions of iris and ciliary body
- H21.8Other specified disorders of iris and ciliary body
- H21.9Unspecified disorder of iris and ciliary body
Questions about H21.3
- Is H21.3 a billable ICD-10-CM code?
- No. H21.3 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does H21.3 sit in the tabular list?
- Diseases of the eye and adnexa (H00-H59), in the block Disorders of sclera, cornea, iris and ciliary body (H15-H22).