Clinical Scorecard: Expert Commentary: Highlighting Concerns Regarding Hypertension in Pediatric Populations

At a Glance

Key Highlights

• Hypertension in children is underdiagnosed and undercoded in administrative claims compared to direct blood pressure measurement data.
• Blood pressure measurement variability in children is influenced by physiological and technical factors, including cuff size and measurement site.
• The prevalence of pediatric hypertension is higher when identified by clinical blood pressure data than by ICD-9-CM/ICD-10-CM diagnosis codes.

Guideline-Based Recommendations

Diagnosis

• Use direct blood pressure measurements with at least three elevated readings on separate days within a 3-year period to classify elevated blood pressure or hypertension.
• Reference normative values adjusted for age, height, and sex for blood pressure percentiles.
• Avoid sole reliance on ICD-9-CM/ICD-10-CM codes for epidemiologic assessment of pediatric hypertension.

Management

• Follow American Academy of Pediatrics recommendations for annual blood pressure measurement during preventive well-child visits or more frequently in at-risk children.
• Consider antihypertensive medications such as ACE inhibitors, β-blockers, and diuretics when clinically indicated.

Monitoring & Follow-up

• Regular blood pressure monitoring in pediatric patients, especially those with risk factors or elevated readings.
• Ensure consistent measurement techniques, including appropriate cuff size and upper extremity measurement when possible.

Risks

• Underdiagnosis of pediatric hypertension may lead to missed opportunities for early intervention to prevent adult hypertension and cardiovascular complications.
• Misclassification bias due to variability in blood pressure measurement and coding practices.

Patient & Prescribing Data

Children and adolescents identified with hypertension or elevated blood pressure

Antihypertensive medication use is uncommon but increases after diagnosis, particularly with ACE inhibitors, β-blockers, and diuretics.

Clinical Best Practices

• Increase frequency and accuracy of blood pressure measurements in pediatric patients per AAP guidelines.
• Use multiple elevated blood pressure readings over time rather than single measurements for diagnosis.
• Interpret blood pressure data considering measurement variability and patient-specific factors.
• Avoid reliance solely on administrative claims data for identifying pediatric hypertension.
• Address demographic disparities observed in hypertension prevalence, including higher rates in males, Black race, Hispanic ethnicity, and obesity.

References

• Horgan et al, Am J Epidemiol 2025;194(2):407-419
• American Academy of Pediatrics Clinical Practice Guideline on Pediatric Hypertension