Other specified pulmonary heart diseases

This code represents a range of pulmonary heart conditions that are not specifically classified elsewhere. These are disorders affecting the heart's function due to underlying lung disease or conditions impacting the pulmonary circulation, but which do not meet criteria for pulmonary hypertension, pulmonary embolism, or other more specific pulmonary heart disease diagnoses.

Use this code when documentation clearly indicates a pulmonary heart disease that doesn't fit into more specific ICD-10-CM categories. This may include conditions like chronic cor pulmonale without specified pulmonary hypertension, or other secondary cardiac effects directly attributable to a chronic lung condition. Supporting documentation should detail the cardiac involvement and its link to the pulmonary pathology.

• Always seek more specific codes first; this is a residual category.
• Ensure the medical record explicitly states a "pulmonary heart disease" and not just a lung disease with cardiac symptoms.
• Do not use this code for isolated pulmonary hypertension (I27.0, I27.2x) or acute cor pulmonale due to pulmonary embolism (I26.-).