ICD Code G90.A

ICD code G90.A is postural orthostatic tachycardia syndrome (POTS), a condition characterized by an abnormal increase in heart rate when moving from lying down to standing up.

1. Presence of chronic symptoms of orthostatic intolerance (such as lightheadedness, palpitations, weakness, blurred vision, or fatigue) that worsen upon standing and improve with recumbency

2. Heart rate increase of at least 30 beats per minute (bpm) within 10 minutes of standing or head-up tilt (or at least 40 bpm in adolescents aged 12–19), without orthostatic hypotension

3. Absence of significant orthostatic hypotension (no sustained drop in systolic blood pressure of ≥20 mmHg or diastolic blood pressure of ≥10 mmHg upon standing)

4. Symptoms present for at least 6 months

5. Exclusion of other causes of tachycardia or orthostatic intolerance (such as dehydration, medications, anemia, hyperthyroidism, or cardiac arrhythmias)

Relevant CPT codes that may be used to treat ICD code G90.A include:

- 99202–99215 (Evaluation and Management office/outpatient visits)

- 93000 (Electrocardiogram, routine ECG with at least 12 leads; with interpretation and report)

- 95921 (Autonomic testing; cardiovascular autonomic function test with tilt table)

- 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular)

- 96365 (Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour)

- 36415 (Collection of venous blood by venipuncture)

- 99457 (Remote physiologic monitoring treatment management services, 20 minutes or more of clinical staff/physician/other qualified healthcare professional time in a calendar month)

Applicable CPT codes should be selected based on the specific services provided for ICD code G90.A.

Schedule a demo to see how MD Clarity’s RevFind software can automatically read your contracts and detect underpayments for CPT codes related to ICD code G90.A. Ensure your organization is paid accurately—discover how RevFind can help you identify missed revenue opportunities today.