All ICD10 Codes
MS-DRG 834Medical

Acute Leukemia with MCC

Major Diagnostic Category 17·Grouped by diagnosis·FY 2027

MS-DRG 834 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 17 (MDC 17) with a Major Complication or Comorbidity (MCC). It maps to 33 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 5.5080 with a geometric mean length of stay of 9.6 days and an arithmetic mean of 15.4 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

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FY 2027 payment data

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

Relative weight:
5.5080 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
9.6 days (used for transfer payments)
Average stay:
15.4 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.

DRGTitleRelative weightMean stay
834Acute Leukemia with MCC (this page)5.50809.6 days
835Acute Leukemia with CC2.30314.6 days
836Acute Leukemia without CC/MCC1.14062.6 days

Diagnosis codes (33)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 834. 100% of the codes listed are billable.