ICD-10-CM FY2027 diagnosis code

H21.23: Degeneration of iris (pigmentary)

Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027

H21.23 groups related diagnoses under degeneration of iris (pigmentary). It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.

Billable codes under H21.23

H21.231Degeneration of iris (pigmentary), right eye
H21.232Degeneration of iris (pigmentary), left eye
H21.233Degeneration of iris (pigmentary), bilateral
H21.239Degeneration of iris (pigmentary), unspecified eye

Other codes in H21.2 Degeneration of iris and ciliary body

H21.21Degeneration of chamber angleheader
H21.22Degeneration of ciliary bodyheader
H21.24Degeneration of pupillary marginheader
H21.25Iridoschisisheader
H21.26Iris atrophy (essential) (progressive)header
H21.27Miotic pupillary cystheader
H21.29Other iris atrophy

H21.23 questions

Is H21.23 a billable code?

No. H21.23 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.

What does H21.23 mean?

H21.23 is the ICD-10-CM code for Degeneration of iris (pigmentary). 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.