H21.9 – Unspecified disorder of iris and ciliary body
ICD-10-CM 2027 diagnosis code · Disorders of sclera, cornea, iris and ciliary body
ICD-10-CM code
H21.9
- Code
H21.9(claims format:H219)- Description
- Unspecified disorder of iris and ciliary body
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 7. Diseases of the eye and adnexa (H00-H59)
- Block
- H15-H22 Disorders of sclera, cornea, iris and ciliary body
- Parent codes
- H21
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
H21 – Other disorders of iris and ciliary body
Excludes2 (not included here):
- sympathetic uveitis (H44.1-)
Index terms for H21.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H21
- H21.0 – HyphemaHeader
- H21.1 – Other vascular disorders of iris and ciliary bodyHeader
- H21.2 – Degeneration of iris and ciliary bodyHeader
- H21.3 – Cyst of iris, ciliary body and anterior chamberHeader
- H21.4 – Pupillary membranesHeader
- H21.5 – Other and unspecified adhesions and disruptions of iris and ciliary bodyHeader
- H21.8 – Other specified disorders of iris and ciliary bodyHeader
Frequently asked questions
What is ICD-10 code H21.9?
H21.9 is the ICD-10-CM code for unspecified disorder of iris and ciliary body, in the block H15-H22 (Disorders of sclera, cornea, iris and ciliary body).
Is H21.9 a billable code?
Yes. H21.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does H21.9 belong to?
It belongs to category H21 – Other disorders of iris and ciliary body.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.