Unspecified disease of pulmonary circulation

This code signifies a general or unspecified disorder affecting the blood vessels within the lungs. It indicates the presence of a pulmonary circulatory issue without a more precise diagnosis regarding its nature or specific location.

This code is appropriate when documentation indicates a problem with the pulmonary circulation but lacks specific details such as pulmonary hypertension, embolism, or vasculitis. It may be used when a definitive diagnosis is pending or when the physician has not specified the exact nature of the pulmonary vascular disease.

• Avoid using this code if more specific documentation is available (e.g., pulmonary hypertension, pulmonary embolism).
• Query the provider for clarification if a more precise diagnosis of the pulmonary circulatory disorder is suspected but not documented.
• This code should be considered a last resort when no other specific code for pulmonary circulatory disease can be assigned.