Diseases of the resp sys comp pregnancy, second trimester

This code signifies a respiratory system disorder that is adversely affecting a pregnancy during the second trimester. This includes conditions such as asthma, bronchitis, pneumonia, or other lung diseases that are present and complicating the current gestation. The respiratory condition is considered a direct risk factor or has an impact on the maternal or fetal health during this specific period of pregnancy.

Apply this code when a pregnant patient in her second trimester is diagnosed with a respiratory disease that is explicitly documented as complicating her pregnancy. This could involve exacerbations of pre-existing conditions or newly acquired respiratory illnesses. Documentation should clearly link the respiratory condition to the pregnancy and specify the trimester.

• Ensure documentation explicitly states the respiratory condition is "complicating" the pregnancy and specifies the "second trimester."
• Always sequence the code for the specific respiratory condition (e.g., J45.901 for asthma with exacerbation) as the primary diagnosis, followed by this complication code.
• Do not use this code if the respiratory condition is merely co-existing with the pregnancy without documented complications or if the complication occurs in a different trimester.