Is H21.55 a billable code?
No. H21.55 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
H21.55: Recession of chamber angle
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
H21.55 groups related diagnoses under recession of chamber angle. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under H21.55
- H21.551Recession of chamber angle, right eye
- H21.552Recession of chamber angle, left eye
- H21.553Recession of chamber angle, bilateral
- H21.559Recession of chamber angle, unspecified eye
Other codes in H21.5 Other and unspecified adhesions and disruptions of iris and ciliary body
H21.55 questions
What does H21.55 mean?
H21.55 is the ICD-10-CM code for Recession of chamber angle. 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.