MS-DRG 189Medical
Pulmonary Edema and Respiratory Failure
Major Diagnostic Category 04·Grouped by diagnosis·FY 2027
MS-DRG 189 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 04 (MDC 04). It maps to 22 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.2108 with a geometric mean length of stay of 3.4 days and an arithmetic mean of 4.6 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.
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FY 2027 payment data
From Table 5 of the FY 2027 IPPS Final Rule (CMS).
- Relative weight:
- 1.2108 (payment multiplier vs. the average case (1.0))
- Geometric mean stay:
- 3.4 days (used for transfer payments)
- Average stay:
- 4.6 days (arithmetic mean)
- Post-acute transfer policy:
- No (not subject to it)
Diagnosis codes (22)
As the principal diagnosis, these ICD-10-CM codes can group to DRG 189. 100% of the codes listed are billable.
- J18.2Hypostatic pneumonia, unspecified organism
- J68.1Pulmonary edema due to chemicals, gases, fumes and vapors
- J80Acute respiratory distress syndrome
- J81.0Acute pulmonary edema
- J81.1Chronic pulmonary edema
- J95.1Acute pulmonary insufficiency following thoracic surgery
- J95.2Acute pulmonary insufficiency following nonthoracic surgery
- J95.3Chronic pulmonary insufficiency following surgery
- J95.821Acute postprocedural respiratory failure
- J95.822Acute and chronic postprocedural respiratory failure
- J96.00Acute respiratory failure, unspecified whether with hypoxia or hypercapnia
- J96.01Acute respiratory failure with hypoxia
- J96.02Acute respiratory failure with hypercapnia
- J96.10Chronic respiratory failure, unspecified whether with hypoxia or hypercapnia
- J96.11Chronic respiratory failure with hypoxia
- J96.12Chronic respiratory failure with hypercapnia
- J96.20Acute and chronic respiratory failure, unspecified whether with hypoxia or hypercapnia
- J96.21Acute and chronic respiratory failure with hypoxia
- J96.22Acute and chronic respiratory failure with hypercapnia
- J96.90Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia
- J96.91Respiratory failure, unspecified with hypoxia
- J96.92Respiratory failure, unspecified with hypercapnia