Gottron's papules

This code represents Gottron's papules, which are erythematous to violaceous, flat-topped papules or plaques that typically occur over the extensor surfaces of the metacarpophalangeal (MCP) and interphalangeal (IP) joints. They are a characteristic cutaneous manifestation of dermatomyositis, a systemic autoimmune disease.

Use this code when documentation specifically identifies the presence of Gottron's papules in a patient. This finding is highly suggestive of dermatomyositis, and its presence should prompt further investigation for the underlying systemic condition. Documentation should clearly describe the characteristic skin lesions and their location.

• Always code the underlying dermatomyositis (M33.0- or M33.1-) as the primary diagnosis when Gottron's papules are present.
• Do not confuse Gottron's papules with Gottron's sign, which refers to erythema over the same joints without papule formation.
• Ensure the physician's documentation clearly distinguishes these papules from other skin conditions affecting the hands, such as psoriasis or eczema.