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  3. Diagnosis Codes in MS-DRG 381 - Complicated Peptic Ulcer With CC

Diagnosis Codes in MS-DRG 381 - Complicated Peptic Ulcer With CC

The Medicare Severity Diagnosis-Related Group (MS-DRG) is a patient classification system used to categorize hospital cases based on clinical similarity and expected resource use. MS-DRGs organize all possible principal diagnoses into mutually exclusive groups known as Major Diagnostic Categories (MDCs), which help determine reimbursement under the Medicare Inpatient Prospective Payment System.

This section lists the diagnosis codes included in MS-DRG V43.0: Complicated Peptic Ulcer with CC from October 1, 2025, through September 30, 2026.

MS-DRG: 381

MS-DRG Title: Complicated Peptic Ulcer with CC

MCD: 06

Relative Weight: 1.0835 Relative Weight
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Geometric LOS: 3.10 Geometric Length of Stay
The geometric mean length of stay (GMLOS) is used by Medicare to calculate the reimbursement for patients whose medical treatment takes a much longer or shorter time than average.

Arithmetic LOS: 3.80 Arithmetic Length of Stay
The average length of stay (ALOS) reflects the average number of days a patient spends in a hospital for each admission.

  • E16 - Other disorders of pancreatic internal secretion

    • E16.4 - Increased secretion of gastrin

  • K22.1 - Ulcer of esophagus

    • K22.10 - Ulcer of esophagus without bleeding

    • K22.11 - Ulcer of esophagus with bleeding

  • K22.7 - Barrett's esophagus

    • K22.70 - Barrett's esophagus without dysplasia

  • K22.71 - Barrett's esophagus with dysplasia

    • K22.710 - Barrett's esophagus with low grade dysplasia

    • K22.711 - Barrett's esophagus with high grade dysplasia

    • K22.719 - Barrett's esophagus with dysplasia, unspecified

  • K25 - Gastric ulcer

    • K25.1 - Acute gastric ulcer with perforation

    • K25.3 - Acute gastric ulcer without hemorrhage or perforation

    • K25.5 - Chronic or unspecified gastric ulcer with perforation

    • K25.7 - Chronic gastric ulcer without hemorrhage or perforation

    • K25.9 - Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation

  • K26 - Duodenal ulcer

    • K26.1 - Acute duodenal ulcer with perforation

    • K26.3 - Acute duodenal ulcer without hemorrhage or perforation

    • K26.5 - Chronic or unspecified duodenal ulcer with perforation

    • K26.7 - Chronic duodenal ulcer without hemorrhage or perforation

    • K26.9 - Duodenal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

  • K27 - Peptic ulcer, site unspecified

    • K27.1 - Acute peptic ulcer, site unspecified, with perforation

    • K27.3 - Acute peptic ulcer, site unspecified, without hemorrhage or perforation

    • K27.5 - Chronic or unspecified peptic ulcer, site unspecified, with perforation

    • K27.7 - Chronic peptic ulcer, site unspecified, without hemorrhage or perforation

    • K27.9 - Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation

  • K28 - Gastrojejunal ulcer

    • K28.1 - Acute gastrojejunal ulcer with perforation

    • K28.3 - Acute gastrojejunal ulcer without hemorrhage or perforation

    • K28.5 - Chronic or unspecified gastrojejunal ulcer with perforation

    • K28.7 - Chronic gastrojejunal ulcer without hemorrhage or perforation

    • K28.9 - Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation

  • K31 - Other diseases of stomach and duodenum

    • K31.1 - Adult hypertrophic pyloric stenosis

    • K31.5 - Obstruction of duodenum

  • Q43 - Other congenital malformations of intestine

    • Q43.0 - Meckel's diverticulum (displaced) (hypertrophic)