Thyroid orbitopathy, left orbit

This code signifies an inflammatory condition affecting the tissues surrounding the left eye, specifically due to thyroid dysfunction. It is a manifestation of Graves' disease, also known as Graves' ophthalmopathy or thyroid-associated ophthalmopathy (TAO), impacting the orbital structures.

Use this code when documentation clearly indicates thyroid orbitopathy affecting the left eye. This diagnosis is typically supported by clinical findings such as proptosis, diplopia, orbital pain, or lid retraction, in conjunction with evidence of thyroid disease.

• Ensure laterality is precisely documented and coded; this code is specific to the left orbit.
• Always code the underlying thyroid condition (e.g., Graves' disease) first, as it is the etiology of the orbitopathy.
• Distinguish from other orbital inflammatory conditions not related to thyroid disease.