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839

MS-DRG 839: CHEMOTHERAPY WITH ACUTE LEUKEMIA AS SECONDARY DIAGNOSIS WITHOUT CC/MCC

DRGMedicalMDC 17

MS-DRG 839 is chemotherapy with acute leukemia as secondary diagnosis without cc/mcc, in MDC 17 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 1.3782, so a case here pays more than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 3.70 days. 36 ICD-10-CM principal diagnoses group into MS-DRGs 837–839 under the CMS definitions manual; the most-searched are listed below.

FY2027 payment factors

Relative weight
1.3782
Geometric mean LOS
3.70
Arithmetic mean LOS
4.20
Post-acute transfer
No

Principal diagnoses that group to MS-DRGs 837–839

From the CMS MS-DRG definitions manual’s principal-diagnosis index: 36 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 837–839 the case lands in. The 24 most-searched:

  • Z08Encounter for follow-up examination after completed treatment for malignant neoplasm
  • C92.00Acute myeloblastic leukemia, not having achieved remission
  • Z51.11Encounter for antineoplastic chemotherapy
  • C91.00Acute lymphoblastic leukemia not having achieved remission
  • C91.01Acute lymphoblastic leukemia, in remission
  • Z51.12Encounter for antineoplastic immunotherapy
  • C95.00Acute leukemia of unspecified cell type not having achieved remission
  • C91.02Acute lymphoblastic leukemia, in relapse
  • C92.01Acute myeloblastic leukemia, in remission
  • C92.02Acute myeloblastic leukemia, in relapse
  • C92.40Acute promyelocytic leukemia, not having achieved remission
  • C92.41Acute promyelocytic leukemia, in remission
  • C92.42Acute promyelocytic leukemia, in relapse
  • C92.50Acute myelomonocytic leukemia, not having achieved remission
  • C92.51Acute myelomonocytic leukemia, in remission
  • C92.52Acute myelomonocytic leukemia, in relapse
  • C92.60Acute myeloid leukemia with 11q23-abnormality not having achieved remission
  • C92.61Acute myeloid leukemia with 11q23-abnormality in remission
  • C92.62Acute myeloid leukemia with 11q23-abnormality in relapse
  • C92.A0Acute myeloid leukemia with multilineage dysplasia, not having achieved remission
  • C92.A1Acute myeloid leukemia with multilineage dysplasia, in remission
  • C92.A2Acute myeloid leukemia with multilineage dysplasia, in relapse
  • C93.00Acute monoblastic/monocytic leukemia, not having achieved remission
  • C93.01Acute monoblastic/monocytic leukemia, in remission

12 more codes group here. Open any code above for its full hierarchy, or check a whole claim in the free DRG calculator.

The severity splits

Same base DRG, split by whether a secondary diagnosis is a CC or MCC. The last column is the weight change from MS-DRG 839.

838CHEMOTHERAPY WITH ACUTE LEUKEMIA AS SECONDARY DIAGNOSIS WITH CC OR HIGH DOSE CHEMOTHERAPY AGENT2.1585+0.7803
839CHEMOTHERAPY WITH ACUTE LEUKEMIA AS SECONDARY DIAGNOSIS WITHOUT CC/MCC1.3782

All FY2027 MS-DRGs · MDC 17

MS-DRG (IPPS Table 5)FY2027