MS-DRG 388 – Gastrointestinal Obstruction with MCC
A Medical DRG in MDC 06 (Diseases & Disorders of the Digestive System). Inpatient cases group to DRG 388 when the ICD-10-CM principal diagnosis is one of the 19 codes listed below and a secondary diagnosis on the major complication or comorbidity (MCC) list is present. Its FY 2026 relative weight is 1.4768 with a geometric mean length of stay of 4.5 days.
Severity family
The grouper first assigns the case to MDC 06 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here), then applies the severity split from secondary diagnoses: with MCC → 388; with CC → 389; without CC/MCC → 390.
Principal Diagnosis Codes 19 codes · 2 categories
K56 Paralytic ileus and intestinal obstruction without hernia16 codes
- K56.0 Paralytic ileus
- K56.1 Intussusception
- K56.2 Volvulus
- K56.3 Gallstone ileus
- K56.41 Fecal impaction
- K56.49 Other impaction of intestine
- K56.50 Intestinal adhesions [bands], unspecified as to partial versus complete obstruction
- K56.51 Intestinal adhesions [bands], with partial obstruction
- K56.52 Intestinal adhesions [bands] with complete obstruction
- K56.600 Partial intestinal obstruction, unspecified as to cause
- K56.601 Complete intestinal obstruction, unspecified as to cause
- K56.609 Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
- K56.690 Other partial intestinal obstruction
- K56.691 Other complete intestinal obstruction
- K56.699 Other intestinal obstruction unspecified as to partial versus complete obstruction
- K56.7 Ileus, unspecified
K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified3 codes
Procedure Codes
Frequently Asked Questions
What is MS-DRG 388?
MS-DRG 388 (Gastrointestinal Obstruction with MCC) is a medical DRG in MDC 06 (Diseases & Disorders of the Digestive System). Its FY 2026 relative weight is 1.4768 with a geometric mean length of stay of 4.5 days.
What is the difference between DRG 388, 389, 390?
All 3 share the same base category; the severity of secondary diagnoses separates them: 388 (with MCC), 389 (with CC), 390 (without CC/MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.
How many diagnosis codes group to DRG 388?
19 ICD-10-CM principal diagnosis codes group to this DRG, spanning 2 three-character categories.
What is the relative weight of DRG 388?
The FY 2026 relative weight of this DRG is 1.4768, meaning reimbursement of roughly 1.48 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
