MS-DRG 154Medical

Other Ear, Nose, Mouth and Throat Diagnoses with MCC

Major Diagnostic Category 03·Grouped by diagnosis·FY 2027

MS-DRG 154 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 03 (MDC 03) with a Major Complication or Comorbidity (MCC). It maps to 598 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.5921 with a geometric mean length of stay of 4 days and an arithmetic mean of 5.5 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

FY 2027 payment data

From Table 5 of the FY 2027 IPPS Final Rule (CMS).

Relative weight:: 1.5921 (payment multiplier vs. the average case (1.0))
Geometric mean stay:: 4 days (used for transfer payments)
Average stay:: 5.5 days (arithmetic mean)
Post-acute transfer policy:: No (not subject to it)

Same condition, other severity levels

CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.

DRG	Title	Relative weight	Mean stay
154	Other Ear, Nose, Mouth and Throat Diagnoses with MCC (this page)	1.5921	4 days
155	Other Ear, Nose, Mouth and Throat Diagnoses with CC	0.9322	2.8 days
156	Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCC	0.6659	2.1 days

Diagnosis codes (598)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 154. 100% of the codes listed are billable.