ICD-10-CM Billable Code

I1A.0

Resistant hypertension

Clinical Classification Guidelines

Inclusion Terms

  • Apparent treatment resistant hypertension
  • Treatment resistant hypertension
  • True resistant hypertension

Code First

  • specific type of existing hypertension, if known, such as:
  • essential hypertension (I10)
  • secondary hypertension (I15.-)

Medical Intelligence & Overview

Resistant hypertension is a form of high blood pressure that remains high despite taking multiple medications. It affects many individuals and can increase the risk of serious health problems if not properly managed. This condition is often referred to as apparent treatment-resistant hypertension, true resistant hypertension, or treatment-resistant hypertension. Recognizing and understanding this condition is vital for those affected and their healthcare providers to develop effective management strategies.

Causes & Symptoms

Clinical Causes: Incorrect blood pressure measurement techniques Non-adherence to prescribed medication regimens Lifestyle factors such as high salt intake, obesity, alcohol consumption, or physical inactivity Secondary causes like kidney disease, hormonal disorders, or sleep apnea Inadequate medication therapy or suboptimal doses Drug interactions that reduce medication effectiveness

Key Symptoms: Consistently high blood pressure readings despite medication Headaches or dizziness that may be associated with elevated blood pressure No specific symptoms; often diagnosed during routine check-ups Signs of secondary causes, such as sleep disturbances or hormonal imbalances

Diagnostic & Treatment

Diagnosis Path: Diagnosis involves confirming high blood pressure readings over multiple visits despite medication use, reviewing medication adherence, and assessing lifestyle factors. Healthcare providers may perform additional tests to identify secondary causes, including blood and urine tests, imaging studies, and sleep assessments. Proper measurement techniques are crucial to avoid false readings. Monitoring blood pressure at home can also help determine if the condition persists outside the clinical setting.

Treatment Protocols: Managing resistant hypertension typically requires a comprehensive approach such as: - Reviewing and optimizing current medication regimens, possibly combining different classes of antihypertensive drugs - Addressing lifestyle factors through dietary modifications, weight management, increased physical activity, and limiting alcohol and salt intake - Ensuring medication adherence through patient education - Screening and treating secondary causes if identified - Considering additional therapies like mineralocorticoid receptor antagonists, device-based interventions, or referring to a specialist in resistant hypertension Regular monitoring and follow-up are essential to evaluate effectiveness and make necessary adjustments to treatment plans.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is I1A.0 a billable ICD-10 code?
Yes, I1A.0 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report I1A.0?
Clinical documentation must specify the nature of Resistant hypertension and any associated comorbidities for accurate reporting.

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Clinical Meta Tags

resistant hypertension