Unspecified astigmatism, unspecified eye

This code signifies a refractive error where the eye's cornea or lens has an irregular curvature, leading to blurred or distorted vision at all distances. The specific type of astigmatism (e.g., myopic, hyperopic, mixed) and the affected eye (right, left, or bilateral) are not documented.

Apply this code when the medical record clearly states a diagnosis of astigmatism but lacks further specificity regarding its type or laterality. Documentation supporting its use would include a physician's note indicating "astigmatism" without additional details on the affected eye or the nature of the refractive error.

• Avoid using this code if the documentation specifies the type of astigmatism (e.g., regular, irregular, myopic) or the affected eye(s).
• Always query the provider for more specific documentation if possible to allow for a more precise code assignment.
• This code should be a last resort when no further information about the astigmatism can be obtained.