ICD Code O13.9

ICD code O13.9 is gestational hypertension (high blood pressure caused by pregnancy) without significant protein in the urine, and the trimester of pregnancy is not specified.

1. Patient is pregnant.

2. Elevated blood pressure is detected during pregnancy.

3. No significant proteinuria is present.

4. No other signs of preeclampsia (such as organ dysfunction or severe features).

5. Hypertension is not attributable to chronic hypertension or other secondary causes.

6. The specific trimester of pregnancy is not documented or specified.

Relevant CPT codes that may be used to treat ICD code O13.9 include:

- 99202–99215 (Office or other outpatient visit codes)

- 99406–99407 (Smoking and tobacco use cessation counseling, if applicable)

- 93000 (Electrocardiogram, routine ECG with at least 12 leads)

- 81001–81003 (Urinalysis, automated or dipstick)

- 36415 (Collection of venous blood by venipuncture)

- 80048, 80053 (Basic or comprehensive metabolic panel)

- 84132 (Potassium; serum)

- 84443 (Thyroid stimulating hormone, if indicated)

- 76801, 76805, 76815 (Obstetric ultrasound, as indicated)

- 99217–99239 (Observation care, if required)

- 96372 (Therapeutic, prophylactic, or diagnostic injection, if medication administered)

CPT code selection should be based on the specific services rendered and clinical scenario.

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