Diagnosis Codes in MS-DRG 304 - Hypertension With MCC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the diagnosis codes included in MS-DRG V42.0: Hypertension with MCC from October 1, 2024, through September 30, 2025.

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    • I10 - Essential (primary) hypertension

  • I11 - Hypertensive heart disease

    • I11.9 - Hypertensive heart disease without heart failure

  • I15 - Secondary hypertension

    • I15.0 - Renovascular hypertension

    • I15.1 - Hypertension secondary to other renal disorders

    • I15.2 - Hypertension secondary to endocrine disorders

    • I15.8 - Other secondary hypertension

    • I15.9 - Secondary hypertension, unspecified

  • I16 - Hypertensive crisis

    • I16.0 - Hypertensive urgency

    • I16.1 - Hypertensive emergency

    • I16.9 - Hypertensive crisis, unspecified

  • I1A - Other hypertension

    • I1A.0 - Resistant hypertension

  • N26 - Unspecified contracted kidney