DRG 870

Medical DRG

Septicemia or Severe Sepsis with MV >96 Hours

TypeMedicalMDC18Dx Codes40

What is MS-DRG 870?

MS-DRG 870 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 18 (MDC 18). It maps to 40 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 6.9118 with a geometric mean length of stay of 12.7 days and an arithmetic mean of 15.2 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification

Medical DRG

Diagnosis-driven grouping

MDC

Major Diagnostic Category 18

Linked Codes

40 diagnosis

1 procedure

Billable Dx

100%

40 of 40 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight

6.9118

Payment multiplier vs. average case (1.0)

Geometric Mean LOS

12.7 days

Used for transfer payment calculations

Arithmetic Mean LOS

15.2 days

Average length of stay

Post-Acute Transfer

Yes

Subject to the post-acute care transfer policy

Linked ICD-10-PCS Procedure Mappings

5A1955Z
Respiratory Ventilation, Greater than 96 Consecutive Hours
BillableSection 5

Linked ICD-10-CM Diagnosis Mappings

A02.1
Salmonella sepsis
BillableChapter 1
A20.7
Septicemic plague
BillableChapter 1
A22.7
Anthrax sepsis
BillableChapter 1
A26.7
Erysipelothrix sepsis
BillableChapter 1
A32.7
Listerial sepsis
BillableChapter 1
A39.1
Waterhouse-Friderichsen syndrome
BillableChapter 1
A39.2
Acute meningococcemia
BillableChapter 1
A39.3
Chronic meningococcemia
BillableChapter 1
A39.4
Meningococcemia, unspecified
BillableChapter 1
A39.89
Other meningococcal infections
BillableChapter 1
A39.9
Meningococcal infection, unspecified
BillableChapter 1
A40.0
Sepsis due to streptococcus, group A
BillableChapter 1
A40.1
Sepsis due to streptococcus, group B
BillableChapter 1
A40.3
Sepsis due to Streptococcus pneumoniae
BillableChapter 1
A40.8
Other streptococcal sepsis
BillableChapter 1
A40.9
Streptococcal sepsis, unspecified
BillableChapter 1
A41.01
Sepsis due to Methicillin susceptible Staphylococcus aureus
BillableChapter 1
A41.02
Sepsis due to Methicillin resistant Staphylococcus aureus
BillableChapter 1
A41.1
Sepsis due to other specified staphylococcus
BillableChapter 1
A41.2
Sepsis due to unspecified staphylococcus
BillableChapter 1
A41.3
Sepsis due to Hemophilus influenzae
BillableChapter 1
A41.4
Sepsis due to anaerobes
BillableChapter 1
A41.50
Gram-negative sepsis, unspecified
BillableChapter 1
A41.51
Sepsis due to Escherichia coli [E. coli]
BillableChapter 1
A41.52
Sepsis due to Pseudomonas
BillableChapter 1
A41.53
Sepsis due to Serratia
BillableChapter 1
A41.54
Sepsis due to Acinetobacter baumannii
BillableChapter 1
A41.59
Other Gram-negative sepsis
BillableChapter 1
A41.81
Sepsis due to Enterococcus
BillableChapter 1
A41.89
Other specified sepsis
BillableChapter 1
A41.9
Sepsis, unspecified organism
BillableChapter 1
A42.7
Actinomycotic sepsis
BillableChapter 1
A54.86
Gonococcal sepsis
BillableChapter 1
B00.7
Disseminated herpesviral disease
BillableChapter 1
B37.7
Candidal sepsis
BillableChapter 1
R57.1
Hypovolemic shock
BillableChapter 18
R57.8
Other shock
BillableChapter 18
R65.20
Severe sepsis without septic shock
BillableChapter 18
R65.21
Severe sepsis with septic shock
BillableChapter 18
R78.81
Bacteremia
BillableChapter 18