MS-DRG · FY 2026 v43.0

MS-DRG 386 – Inflammatory Bowel Disease with CC

A Medical DRG in MDC 06 (Diseases & Disorders of the Digestive System). Inpatient cases group to DRG 386 when the ICD-10-CM principal diagnosis is one of the 77 codes listed below and a secondary diagnosis on the complication or comorbidity (CC) list is present. Its FY 2026 relative weight is 0.9763 with a geometric mean length of stay of 3.3 days.

Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
0.9763
Relative Weight
3.3
Geometric Mean LOS (days)
4.2
Arithmetic Mean LOS (days)
77
Principal Diagnosis Codes

Severity family

DRG 385with MCCWeight 1.5823 · GMLOS 4.8 daysDRG 386with CCWeight 0.9763 · GMLOS 3.3 daysDRG 387without CC/MCCWeight 0.6813 · GMLOS 2.5 days
How a case is assigned to DRG 386

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 → 385; with CC → 386; without CC/MCC → 387.

ICD-10-CM

Principal Diagnosis Codes 77 codes · 2 categories

77 of 77 shown
K50 Crohn's disease [regional enteritis]28 codes
  • K50.00 Crohn's disease of small intestine without complications
  • K50.011 Crohn's disease of small intestine with rectal bleeding
  • K50.012 Crohn's disease of small intestine with intestinal obstruction
  • K50.013 Crohn's disease of small intestine with fistula
  • K50.014 Crohn's disease of small intestine with abscess
  • K50.018 Crohn's disease of small intestine with other complication
  • K50.019 Crohn's disease of small intestine with unspecified complications
  • K50.10 Crohn's disease of large intestine without complications
  • K50.111 Crohn's disease of large intestine with rectal bleeding
  • K50.112 Crohn's disease of large intestine with intestinal obstruction
  • K50.113 Crohn's disease of large intestine with fistula
  • K50.114 Crohn's disease of large intestine with abscess
  • K50.118 Crohn's disease of large intestine with other complication
  • K50.119 Crohn's disease of large intestine with unspecified complications
  • K50.80 Crohn's disease of both small and large intestine without complications
  • K50.811 Crohn's disease of both small and large intestine with rectal bleeding
  • K50.812 Crohn's disease of both small and large intestine with intestinal obstruction
  • K50.813 Crohn's disease of both small and large intestine with fistula
  • K50.814 Crohn's disease of both small and large intestine with abscess
  • K50.818 Crohn's disease of both small and large intestine with other complication
  • K50.819 Crohn's disease of both small and large intestine with unspecified complications
  • K50.90 Crohn's disease, unspecified, without complications
  • K50.911 Crohn's disease, unspecified, with rectal bleeding
  • K50.912 Crohn's disease, unspecified, with intestinal obstruction
  • K50.913 Crohn's disease, unspecified, with fistula
  • K50.914 Crohn's disease, unspecified, with abscess
  • K50.918 Crohn's disease, unspecified, with other complication
  • K50.919 Crohn's disease, unspecified, with unspecified complications
K51 Ulcerative colitis49 codes
  • K51.00 Ulcerative (chronic) pancolitis without complications
  • K51.011 Ulcerative (chronic) pancolitis with rectal bleeding
  • K51.012 Ulcerative (chronic) pancolitis with intestinal obstruction
  • K51.013 Ulcerative (chronic) pancolitis with fistula
  • K51.014 Ulcerative (chronic) pancolitis with abscess
  • K51.018 Ulcerative (chronic) pancolitis with other complication
  • K51.019 Ulcerative (chronic) pancolitis with unspecified complications
  • K51.20 Ulcerative (chronic) proctitis without complications
  • K51.211 Ulcerative (chronic) proctitis with rectal bleeding
  • K51.212 Ulcerative (chronic) proctitis with intestinal obstruction
  • K51.213 Ulcerative (chronic) proctitis with fistula
  • K51.214 Ulcerative (chronic) proctitis with abscess
  • K51.218 Ulcerative (chronic) proctitis with other complication
  • K51.219 Ulcerative (chronic) proctitis with unspecified complications
  • K51.30 Ulcerative (chronic) rectosigmoiditis without complications
  • K51.311 Ulcerative (chronic) rectosigmoiditis with rectal bleeding
  • K51.312 Ulcerative (chronic) rectosigmoiditis with intestinal obstruction
  • K51.313 Ulcerative (chronic) rectosigmoiditis with fistula
  • K51.314 Ulcerative (chronic) rectosigmoiditis with abscess
  • K51.318 Ulcerative (chronic) rectosigmoiditis with other complication
  • K51.319 Ulcerative (chronic) rectosigmoiditis with unspecified complications
  • K51.40 Inflammatory polyps of colon without complications
  • K51.411 Inflammatory polyps of colon with rectal bleeding
  • K51.412 Inflammatory polyps of colon with intestinal obstruction
  • K51.413 Inflammatory polyps of colon with fistula
  • K51.414 Inflammatory polyps of colon with abscess
  • K51.418 Inflammatory polyps of colon with other complication
  • K51.419 Inflammatory polyps of colon with unspecified complications
  • K51.50 Left sided colitis without complications
  • K51.511 Left sided colitis with rectal bleeding
  • K51.512 Left sided colitis with intestinal obstruction
  • K51.513 Left sided colitis with fistula
  • K51.514 Left sided colitis with abscess
  • K51.518 Left sided colitis with other complication
  • K51.519 Left sided colitis with unspecified complications
  • K51.80 Other ulcerative colitis without complications
  • K51.811 Other ulcerative colitis with rectal bleeding
  • K51.812 Other ulcerative colitis with intestinal obstruction
  • K51.813 Other ulcerative colitis with fistula
  • K51.814 Other ulcerative colitis with abscess
  • K51.818 Other ulcerative colitis with other complication
  • K51.819 Other ulcerative colitis with unspecified complications
  • K51.90 Ulcerative colitis, unspecified, without complications
  • K51.911 Ulcerative colitis, unspecified with rectal bleeding
  • K51.912 Ulcerative colitis, unspecified with intestinal obstruction
  • K51.913 Ulcerative colitis, unspecified with fistula
  • K51.914 Ulcerative colitis, unspecified with abscess
  • K51.918 Ulcerative colitis, unspecified with other complication
  • K51.919 Ulcerative colitis, unspecified with unspecified complications
ICD-10-PCS

Procedure Codes

Procedure codes do not drive assignment for this DRG. DRG 386 is a Medical DRG, assigned from the principal diagnosis above.

Frequently Asked Questions

What is MS-DRG 386?

MS-DRG 386 (Inflammatory Bowel Disease with CC) is a medical DRG in MDC 06 (Diseases & Disorders of the Digestive System). Its FY 2026 relative weight is 0.9763 with a geometric mean length of stay of 3.3 days.

What is the difference between DRG 385, 386, 387?

All 3 share the same base category; the severity of secondary diagnoses separates them: 385 (with MCC), 386 (with CC), 387 (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 386?

77 ICD-10-CM principal diagnosis codes group to this DRG, spanning 2 three-character categories.

What is the relative weight of DRG 386?

The FY 2026 relative weight of this DRG is 0.9763, meaning reimbursement of roughly 0.98 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.

← PreviousDRG 385 – Inflammatory Bowel Disease with MCC
Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.