H21
ICD-10Non-billable categoryOther disorders of iris and ciliary body
Official ICD-10-CM descriptor (FY2026)
Other disorders of iris and ciliary body
H21 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- sympathetic uveitis (H44.1-)
More specific codes under H21
- H21.0Hyphemacategory
- H21.1Other vascular disorders of iris and ciliary bodycategory
- H21.2Degeneration of iris and ciliary bodycategory
- H21.3Cyst of iris, ciliary body and anterior chambercategory
- H21.4Pupillary membranescategory
- H21.5Oth and unsp adhes and disruptions of iris and ciliary bodycategory
- H21.8Other specified disorders of iris and ciliary bodycategory
- H21.9Unspecified disorder of iris and ciliary body
Where this code sits
Krasyn AI Coder
Get code suggestions automatically as you type notes. Free for 50 analyses.
Install for Chrome — freeSource
ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.