DRG 390

Medical DRG

Gastrointestinal Obstruction without CC/MCC

TypeMedicalMDC06Dx Codes19

What is MS-DRG 390?

MS-DRG 390 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 06 (MDC 06) without a significant Complication or Comorbidity. It maps to 19 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.5440 with a geometric mean length of stay of 2.2 days and an arithmetic mean of 2.6 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification

Medical DRG

Diagnosis-driven grouping

MDC

Major Diagnostic Category 06

Linked Codes

19 diagnosis

Billable Dx

100%

19 of 19 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight

0.5440

Payment multiplier vs. average case (1.0)

Geometric Mean LOS

2.2 days

Used for transfer payment calculations

Arithmetic Mean LOS

2.6 days

Average length of stay

Post-Acute Transfer

Yes

Subject to the post-acute care transfer policy

Related MS-DRGs in This Severity Group

The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.

DRG	Title	Rel. Weight	GMLOS
388	Gastrointestinal Obstruction with MCC	1.4768	4.5 days
389	Gastrointestinal Obstruction with CC	0.7898	2.9 days
390	Gastrointestinal Obstruction without CC/MCCThis page	0.5440	2.2 days

Linked ICD-10-CM Diagnosis Mappings

K56.0
Paralytic ileus
BillableChapter 11
K56.1
Intussusception
BillableChapter 11
K56.2
Volvulus
BillableChapter 11
K56.3
Gallstone ileus
BillableChapter 11
K56.41
Fecal impaction
BillableChapter 11
K56.49
Other impaction of intestine
BillableChapter 11
K56.50
Intestinal adhesions [bands], unspecified as to partial versus complete obstruction
BillableChapter 11
K56.51
Intestinal adhesions [bands], with partial obstruction
BillableChapter 11
K56.52
Intestinal adhesions [bands] with complete obstruction
BillableChapter 11
K56.600
Partial intestinal obstruction, unspecified as to cause
BillableChapter 11
K56.601
Complete intestinal obstruction, unspecified as to cause
BillableChapter 11
K56.609
Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
BillableChapter 11
K56.690
Other partial intestinal obstruction
BillableChapter 11
K56.691
Other complete intestinal obstruction
BillableChapter 11
K56.699
Other intestinal obstruction unspecified as to partial versus complete obstruction
BillableChapter 11
K56.7
Ileus, unspecified
BillableChapter 11
K91.30
Postprocedural intestinal obstruction, unspecified as to partial versus complete
BillableChapter 11
K91.31
Postprocedural partial intestinal obstruction
BillableChapter 11
K91.32
Postprocedural complete intestinal obstruction
BillableChapter 11