MS-DRG 389: GASTROINTESTINAL OBSTRUCTION WITH CC

DRGMedicalMDC 06

MS-DRG 389 is gastrointestinal obstruction with cc, in MDC 06 (a medical DRG), at the with-CC (complication or comorbidity) level. Its FY2027 relative weight is 0.7891, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 2.90 days. 19 ICD-10-CM principal diagnoses group into MS-DRGs 388–390 under the CMS definitions manual; the most-searched are listed below.

FY2027 payment factors

Relative weight: 0.7891
Geometric mean LOS: 2.90
Arithmetic mean LOS: 3.60
Post-acute transfer: Yes

This DRG is subject to the post-acute care transfer policy: a discharge to a qualifying setting below the mean length of stay is paid per diem rather than in full.

Principal diagnoses that group to MS-DRGs 388–390

From the CMS MS-DRG definitions manual’s principal-diagnosis index: 19 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 388–390 the case lands in. The 19 most-searched:

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

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 389.

388	GASTROINTESTINAL OBSTRUCTION WITH MCC	1.4709	+0.6818
389	GASTROINTESTINAL OBSTRUCTION WITH CC	0.7891
390	GASTROINTESTINAL OBSTRUCTION WITHOUT CC/MCC	0.5404	-0.2487

All FY2027 MS-DRGs · MDC 06