Is H21.51 a billable code?
No. H21.51 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
H21.51: Anterior synechiae (iris)
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
H21.51 groups related diagnoses under anterior synechiae (iris). It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under H21.51
- H21.511Anterior synechiae (iris), right eye
- H21.512Anterior synechiae (iris), left eye
- H21.513Anterior synechiae (iris), bilateral
- H21.519Anterior synechiae (iris), unspecified eye
Other codes in H21.5 Other and unspecified adhesions and disruptions of iris and ciliary body
H21.51 questions
What does H21.51 mean?
H21.51 is the ICD-10-CM code for Anterior synechiae (iris). 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.