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H21.52

Non-billable

Goniosynechiae

H21.52 is the ICD-10-CM code for Goniosynechiae. It is a non-billable category code — use a more specific child code such as H21.521 for billing.

Status
Header (non-billable)
Chapter
H00-H59
Parent
H21.5
Subcodes
4
Edition
FY2026

H00-H59 Diseases of the eye and adnexa

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code H21.52?
H21.52 is the ICD-10-CM code for "Goniosynechiae". It falls under H00-H59 Diseases of the eye and adnexa.
Is H21.52 a billable code?
No — H21.52 is a non-billable header code. Use a more specific child code (such as H21.521) for billing.
What are the subcodes of H21.52?
H21.52 has 4 more specific child codes, including H21.521, H21.522, H21.523.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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