Unspecified pre-eclampsia, second trimester

This code signifies a diagnosis of pre-eclampsia during the second trimester of pregnancy where the specific type or severity of pre-eclampsia (e.g., mild, severe, with or without severe features) has not been documented. Pre-eclampsia is a pregnancy complication characterized by new-onset hypertension and proteinuria after 20 weeks of gestation.

Use this code when the provider's documentation clearly states "pre-eclampsia" occurring in the second trimester, but lacks further specification regarding its severity or specific features. This code is appropriate when the medical record indicates the onset of pre-eclampsia between 14 weeks 0 days and 27 weeks 6 days of gestation.

• Avoid using this code if the documentation specifies "pre-eclampsia with severe features" or "mild pre-eclampsia"; more specific codes exist.
• Always confirm the gestational age at the time of diagnosis to ensure the correct trimester-specific code is selected.
• Sequence this code as a principal diagnosis when pre-eclampsia is the primary reason for the encounter, or as a secondary diagnosis when it is a co-morbidity.