Is H21.31 a billable code?
No. H21.31 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
H21.31: Exudative cysts of iris or anterior chamber
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
H21.31 groups related diagnoses under exudative cysts of iris or anterior chamber. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under H21.31
- H21.311Exudative cysts of iris or anterior chamber, right eye
- H21.312Exudative cysts of iris or anterior chamber, left eye
- H21.313Exudative cysts of iris or anterior chamber, bilateral
- H21.319Exudative cysts of iris or anterior chamber, unspecified eye
Other codes in H21.3 Cyst of iris, ciliary body and anterior chamber
H21.31 questions
What does H21.31 mean?
H21.31 is the ICD-10-CM code for Exudative cysts of iris or anterior chamber. It is in chapter 7, Diseases of the eye and adnexa (H00-H59).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.