DRG 304
Medical DRGHypertension with MCC
What is MS-DRG 304?
MS-DRG 304 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 05 (MDC 05) with a Major Complication or Comorbidity (MCC). It maps to 12 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 1.1900 with a geometric mean length of stay of 3.1 days and an arithmetic mean of 4.1 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
FY 2026 Payment Data
Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).
Related MS-DRGs in This Severity Group
The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.
| DRG | Title | Rel. Weight | GMLOS |
|---|---|---|---|
| 304 | Hypertension with MCCThis page | 1.1900 | 3.1 days |
| 305 | Hypertension without MCC | 0.7551 | 2.1 days |
Linked ICD-10-CM Diagnosis Mappings
- I10
Essential (primary) hypertension
BillableChapter 9 - I11.9
Hypertensive heart disease without heart failure
BillableChapter 9 - I15.0
Renovascular hypertension
BillableChapter 9 - I15.1
Hypertension secondary to other renal disorders
BillableChapter 9 - I15.2
Hypertension secondary to endocrine disorders
BillableChapter 9 - I15.8
Other secondary hypertension
BillableChapter 9 - I15.9
Secondary hypertension, unspecified
BillableChapter 9 - I16.0
Hypertensive urgency
BillableChapter 9 - I16.1
Hypertensive emergency
BillableChapter 9 - I16.9
Hypertensive crisis, unspecified
BillableChapter 9 - I1A.0
Resistant hypertension
BillableChapter 9 - N26.2
Page kidney
BillableChapter 14