842 MS-DRG: LYMPHOMA AND NON-ACUTE LEUKEMIA WITHOUT CC/MCC
MS-DRG 842 groups Medicare inpatient hospital stays for: LYMPHOMA AND NON-ACUTE LEUKEMIA WITHOUT CC/MCC. This is a medical MS-DRG. It falls under MDC 17 (Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 17 — Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms |
| DRG Type | Medical |
| Severity Level | None |
| Relative Weight | 0.9953 |
| Relative Weight (10% Cap Applied) | 0.9953 |
| Geometric Mean Length of Stay | 2.6 days |
| Arithmetic Mean Length of Stay | 3.3 days |
| Post-Acute Transfer DRG | Yes |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
519 diagnosis codes can drive assignment here: C26.1, C46.3, C77.0, C77.1, C77.2, C77.3, C77.4, C77.5, C77.8, C77.9, C7B.01, C81.00 and 507 more.
From the CMS MS-DRG Definitions Manual (Appendices B and E). Assignment also depends on severity, discharge status and the rest of the claim.
Contextual Map
Every relationship of 842 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Major Diagnostic Category
- MDC 17 — Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (519)
- C26.1 — Malignant neoplasm of spleen[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C46.3 — Kaposi's sarcoma of lymph nodes[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C77.0 — Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C77.1 — Secondary and unspecified malignant neoplasm of intrathoracic lymph nodes[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C77.2 — Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodes[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C77.3 — Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodes[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C77.4 — Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodes[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- C77.5 — Secondary and unspecified malignant neoplasm of intrapelvic lymph nodes[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 511 more
DRG family
- DRG 840 — LYMPHOMA AND NON-ACUTE LEUKEMIA WITH MCC[DRG family]: “LYMPHOMA AND NON-ACUTE LEUKEMIA WITH MCC — same CMS DRG family (840-842), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 840-842) · FY2027
- DRG 841 — LYMPHOMA AND NON-ACUTE LEUKEMIA WITH CC[DRG family]: “LYMPHOMA AND NON-ACUTE LEUKEMIA WITH CC — same CMS DRG family (840-842), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 840-842) · FY2027
Read from: CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44. All data sources · How to read the labels · How MedCoder verifies its implementation
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources