438 MS-DRG: DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITH MCC
MS-DRG 438 groups Medicare inpatient hospital stays for: DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITH MCC. This is a medical MS-DRG. It falls under MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 07 — Diseases and Disorders of the Hepatobiliary System and Pancreas |
| DRG Type | Medical |
| Severity Level | MCC |
| Relative Weight | 1.5765 |
| Relative Weight (10% Cap Applied) | 1.5765 |
| Geometric Mean Length of Stay | 4.5 days |
| Arithmetic Mean Length of Stay | 6.1 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
66 diagnosis codes can drive assignment here: B25.2, B26.3, D13.6, K85.00, K85.01, K85.02, K85.10, K85.11, K85.12, K85.20, K85.21, K85.22 and 54 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 438 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 07 — Diseases and Disorders of the Hepatobiliary System and Pancreas[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (66)
- B25.2 — Cytomegaloviral pancreatitis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- B26.3 — Mumps pancreatitis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- D13.6 — Benign neoplasm of pancreas[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- K85.00 — Idiopathic acute pancreatitis without necrosis or infection[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- K85.01 — Idiopathic acute pancreatitis with uninfected necrosis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- K85.02 — Idiopathic acute pancreatitis with infected necrosis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- K85.10 — Biliary acute pancreatitis without necrosis or infection[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- K85.11 — Biliary acute pancreatitis with uninfected necrosis[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 58 more
DRG family
- DRG 439 — DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITH CC[DRG family]: “DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITH CC — same CMS DRG family (438-440), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 438-440) · FY2027
- DRG 440 — DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITHOUT CC/MCC[DRG family]: “DISORDERS OF PANCREAS EXCEPT MALIGNANCY WITHOUT CC/MCC — same CMS DRG family (438-440), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 438-440) · 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 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources