MS-DRG · FY 2026 v43.0

MS-DRG 370 – Major Esophageal Disorders without CC/MCC

A Medical DRG in MDC 06 (Diseases & Disorders of the Digestive System). Inpatient cases group to DRG 370 when the ICD-10-CM principal diagnosis is one of the 24 codes listed below and no secondary diagnosis on the CC or MCC lists is present. Its FY 2026 relative weight is 0.7008 with a geometric mean length of stay of 2.1 days.

Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
0.7008
Relative Weight
2.1
Geometric Mean LOS (days)
2.6
Arithmetic Mean LOS (days)
24
Principal Diagnosis Codes

Severity family

DRG 368with MCCWeight 1.5919 · GMLOS 4.0 daysDRG 369with CCWeight 1.0002 · GMLOS 2.9 daysDRG 370without CC/MCCWeight 0.7008 · GMLOS 2.1 days
How a case is assigned to DRG 370

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 → 368; with CC → 369; without CC/MCC → 370.

ICD-10-CM

Principal Diagnosis Codes 24 codes · 8 categories

24 of 24 shown
B37 Candidiasis1 code
I85 Esophageal varices3 codes
  • I85.00 Esophageal varices without bleeding
  • I85.01 Esophageal varices with bleeding
  • I85.11 Secondary esophageal varices with bleeding
K20 Esophagitis2 codes
  • K20.81 Other esophagitis with bleeding
  • K20.91 Esophagitis, unspecified with bleeding
K21 Gastro-esophageal reflux disease1 code
  • K21.01 Gastro-esophageal reflux disease with esophagitis, with bleeding
K22 Other diseases of esophagus2 codes
  • K22.3 Perforation of esophagus
  • K22.6 Gastro-esophageal laceration-hemorrhage syndrome
Q39 Congenital malformations of esophagus9 codes
  • Q39.0 Atresia of esophagus without fistula
  • Q39.1 Atresia of esophagus with tracheo-esophageal fistula
  • Q39.2 Congenital tracheo-esophageal fistula without atresia
  • Q39.3 Congenital stenosis and stricture of esophagus
  • Q39.4 Esophageal web
  • Q39.5 Congenital dilatation of esophagus
  • Q39.6 Congenital diverticulum of esophagus
  • Q39.8 Other congenital malformations of esophagus
  • Q39.9 Congenital malformation of esophagus, unspecified
S27 Injury of other and unspecified intrathoracic organs4 codes
  • S27.812A Contusion of esophagus (thoracic part), initial encounter
  • S27.813A Laceration of esophagus (thoracic part), initial encounter
  • S27.818A Other injury of esophagus (thoracic part), initial encounter
  • S27.819A Unspecified injury of esophagus (thoracic part), initial encounter
T28 Burn and corrosion of other internal organs2 codes
  • T28.1XXA Burn of esophagus, initial encounter
  • T28.6XXA Corrosion of esophagus, initial encounter
ICD-10-PCS

Procedure Codes

Procedure codes do not drive assignment for this DRG. DRG 370 is a Medical DRG, assigned from the principal diagnosis above.

Frequently Asked Questions

What is MS-DRG 370?

MS-DRG 370 (Major Esophageal Disorders without CC/MCC) is a medical DRG in MDC 06 (Diseases & Disorders of the Digestive System). Its FY 2026 relative weight is 0.7008 with a geometric mean length of stay of 2.1 days.

What is the difference between DRG 368, 369, 370?

All 3 share the same base category; the severity of secondary diagnoses separates them: 368 (with MCC), 369 (with CC), 370 (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 370?

24 ICD-10-CM principal diagnosis codes group to this DRG, spanning 8 three-character categories.

What is the relative weight of DRG 370?

The FY 2026 relative weight of this DRG is 0.7008, meaning reimbursement of roughly 0.70 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.

← PreviousDRG 369 – Major Esophageal Disorders with CC
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.