Unspecified astigmatism, bilateral

This code signifies an uncorrected refractive error where the cornea or lens has an irregular curvature, causing blurred or distorted vision at all distances in both eyes. The specific type or axis of astigmatism is not documented or specified.

Use this code when a patient presents with astigmatism affecting both eyes, but the medical record does not provide details regarding the type (e.g., myopic, hyperopic, mixed) or the axis of the astigmatism. This is appropriate when the provider's documentation simply states "bilateral astigmatism" without further specification.

• Avoid using this code if the astigmatism type or axis is documented; instead, use a more specific code from the H52.2x category.
• Ensure documentation explicitly states "bilateral" or implies both eyes are affected.
• Do not use for unilateral astigmatism; refer to H52.201 or H52.202 for right or left eye, respectively.