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ICD-10-CM 2027

ICD-10 code for regular astigmatism

H52.22

Regular astigmatism

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Astigmatism (compound) (congenital) › regular”. Page updated September 29, 2026.

About coding regular astigmatism

The ICD-10-CM code for regular astigmatism is H52.22 (Regular astigmatism).

Within H52.2 (astigmatism), H52.22 is specifically for regular astigmatism. Related codes cover unspecified astigmatism (H52.20) and irregular astigmatism (H52.21).

To report this condition, pick the subcode that matches the documentation: H52.221 (right eye), H52.222 (left eye), H52.223 (bilateral) and H52.229 (unspecified eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about regular astigmatism ICD-10 codes

What is the ICD-10 code for regular astigmatism?

H52.22 — Regular astigmatism (a header code; report a more specific subcode).

Is H52.22 billable?

No. H52.22 is a header code. Report one of its more specific subcodes instead.