State regulations dictate E/M versus ophthalmology codes

Today, when patients come for a visit, ophthalmologists have the discretionof using either the eye codes (92002 to 92014) or the E/M codes in billing.But, when is it truly appropriate to use a certain set of codes for a givenvisit? Unfortunately, there's no one standard. It all depends on the rulesset by the carriers in your state.