Append modifier 52 when fundus photos done on one eye only

Why This Topic Matters

Ophthalmic diagnostic tests are often billed in ways that depend on whether the service is unilateral or bilateral, and payer-specific rules can affect payment and audit exposure. Understanding the article helps practices recognize when documentation and claims handling may need closer review across Medicare and other payers.

Article Sections

1. Medicare bilateral indicator overview

   Introduces the Medicare fee schedule concept used to classify ophthalmic tests for unilateral and bilateral payment purposes. Summarizes the general meaning of the indicator categories discussed in the article.

2. Unilateral and bilateral tests

   Provides an ophthalmology-focused list of diagnostic tests and related services grouped by their unilateral or bilateral status. The section is intended to help readers identify which service categories are addressed in the article.