Patient presents with pregnancy complicated by hypotension.  The patient reports symptoms including dizziness, lightheadedness, and occasional near-syncope, particularly upon standing.  Onset of these symptoms began approximately at [gestational age] weeks gestation and have been [frequency - e.g., intermittent, persistent, increasing in frequency].  Blood pressure readings have consistently been below the expected range for gestational age, measured today at [systolic] mmHg systolic and [diastolic] mmHg diastolic.  Orthostatic hypotension was evaluated and [positive or negative] with a drop of [value] mmHg systolic and [value] mmHg diastolic upon standing.  Fetal heart tones are currently within normal limits.  Differential diagnosis includes supine hypotensive syndrome, dehydration, pre-eclampsia, and other causes of low blood pressure in pregnancy.  Assessment includes review of medical history, current medications, dietary habits, and fluid intake.  Laboratory tests ordered include complete blood count (CBC), comprehensive metabolic panel (CMP), and urinalysis to evaluate for potential contributing factors such as anemia, electrolyte imbalances, or pre-eclampsia.  Plan of care includes increasing fluid intake, encouraging frequent rest with left lateral positioning, and close monitoring of maternal blood pressure and fetal well-being. Patient education provided regarding symptoms of hypotension, importance of hydration, and positional changes.  Follow-up scheduled in [timeframe] to reassess blood pressure control and pregnancy progression.  Medical coding considerations include ICD-10 codes for hypotension complicating pregnancy, O26.5, and any additional codes for associated symptoms or diagnoses.  This documentation supports medical billing for evaluation and management services related to hypotension in pregnancy.