Polymyositis, organ involvement unspecified

This code signifies a diagnosis of polymyositis, a chronic inflammatory myopathy characterized by progressive muscle weakness, without specific documentation of affected organs or systems. It indicates a systemic autoimmune condition primarily affecting skeletal muscles, leading to their inflammation and degeneration.

Use this code when the medical record clearly states a diagnosis of polymyositis but does not specify any particular organ involvement. This is appropriate when diagnostic workup confirms polymyositis, but further investigations for systemic complications are either pending, negative, or not documented. Documentation should support the diagnosis of polymyositis itself.

• Do not use this code if the medical record specifies any organ involvement (e.g., lung, heart, gastrointestinal).
• Always review the entire medical record for any mention of specific organ involvement to ensure the most precise code is selected.
• Consider querying the provider if polymyositis is documented but organ involvement is unclear, to achieve higher specificity.