ICD Code O13.9

ICD code O13.9 is used to classify gestational hypertension, also known as pregnancy-induced hypertension, that occurs without significant proteinuria and is not specified to a particular trimester of pregnancy. This code is utilized when a pregnant patient experiences elevated blood pressure that is not accompanied by the presence of excess protein in the urine, and the specific stage of pregnancy is not detailed in the medical documentation.

1. Elevated Blood Pressure: The patient presents with elevated blood pressure readings that are first identified during pregnancy. The systolic blood pressure is 140 mm Hg or higher, and/or the diastolic blood pressure is 90 mm Hg or higher, on at least two separate occasions.

2. Absence of Proteinuria: There is no significant proteinuria present. This is confirmed by urine tests that show protein levels below the threshold typically associated with preeclampsia.

3. Pregnancy Status: The condition is identified in a patient who is currently pregnant. The specific trimester is not specified, indicating that the diagnosis can be made at any point during the pregnancy.

4. Exclusion of Pre-existing Hypertension: The elevated blood pressure is not due to chronic hypertension that existed prior to pregnancy. The diagnosis is made based on new-onset hypertension during the pregnancy.

5. Exclusion of Other Hypertensive Disorders: The condition is not associated with other hypertensive disorders of pregnancy, such as preeclampsia or eclampsia, which would involve additional symptoms like significant proteinuria or seizures.

6. Monitoring and Follow-up: The patient requires ongoing monitoring of blood pressure and assessment for any progression to more severe hypertensive disorders of pregnancy.

For the ICD code O13.9, which pertains to gestational hypertension without significant proteinuria, unspecified trimester, the relevant CPT codes that may be applicable for treatment and management include:

1. 99201-99205: New patient office or other outpatient visit codes, depending on the complexity and time spent.

2. 99211-99215: Established patient office or other outpatient visit codes, depending on the complexity and time spent.

3. 99401-99404: Preventive medicine counseling and/or risk factor reduction intervention(s) provided to an individual.

4. 99406-99407: Smoking and tobacco use cessation counseling visit, if applicable.

5. 99495-99496: Transitional care management services, if the patient is transitioning from a hospital or other facility.

6. 99354-99355: Prolonged service in the office or other outpatient setting requiring direct patient contact beyond the usual service.

These CPT codes are examples of services that might be provided in the management of gestational hypertension, depending on the specific clinical scenario and the healthcare provider's assessment. Always ensure that coding is done in compliance with the latest coding guidelines and payer policies.

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