H21.25 – Iridoschisis
ICD-10-CM 2027 diagnosis code · Disorders of sclera, cornea, iris and ciliary body
- Code
H21.25(claims format:H2125)- Description
- Iridoschisis
- Billable
- No – use a more specific code below
- 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 › H21.2
Billable codes under H21.25
H21.25 is a header code and cannot be used on claims. Choose the most specific code:
- H21.251 – Iridoschisis, right eyeBillable
- H21.252 – Iridoschisis, left eyeBillable
- H21.253 – Iridoschisis, bilateralBillable
- H21.259 – Iridoschisis, unspecified eyeBillable
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
- sympathetic uveitis (H44.1-)
Index terms for H21.25
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in H21.2
- H21.21 – Degeneration of chamber angleHeader
- H21.22 – Degeneration of ciliary bodyHeader
- H21.23 – Degeneration of iris (pigmentary)Header
- H21.24 – Degeneration of pupillary marginHeader
- H21.26 – Iris atrophy (essential) (progressive)Header
- H21.27 – Miotic pupillary cystHeader
- H21.29 – Other iris atrophyBillable
Frequently asked questions
What is ICD-10 code H21.25?
H21.25 is the ICD-10-CM code for iridoschisis, in the block H15-H22 (Disorders of sclera, cornea, iris and ciliary body).
Is H21.25 a billable code?
No. H21.25 is a header code with more specific child codes; report one of the billable codes listed above.
What category does H21.25 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.