MS-DRG 76 – Viral Meningitis without CC/MCC
A Medical DRG in MDC 01 (Diseases & Disorders of the Nervous System). Inpatient cases group to DRG 76 when the ICD-10-CM principal diagnosis is one of the 10 codes listed below and no secondary diagnosis on the CC or MCC lists is present. Its FY 2026 relative weight is 0.7488 with a geometric mean length of stay of 2.6 days.
Severity family
The grouper first assigns the case to MDC 01 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 CC/MCC → 75; without CC/MCC → 76.
Principal Diagnosis Codes 10 codes · 6 categories
A87 Viral meningitis5 codes
A88 Other viral infections of central nervous system, not elsewhere classified1 code
- A88.0 Enteroviral exanthematous fever [Boston exanthem]
B00 Herpesviral [herpes simplex] infections1 code
- B00.3 Herpesviral meningitis
B02 Zoster [herpes zoster]1 code
- B02.1 Zoster meningitis
B26 Mumps1 code
- B26.1 Mumps meningitis
G03 Meningitis due to other and unspecified causes1 code
- G03.2 Benign recurrent meningitis [Mollaret]
Procedure Codes
Frequently Asked Questions
What is MS-DRG 76?
MS-DRG 76 (Viral Meningitis without CC/MCC) is a medical DRG in MDC 01 (Diseases & Disorders of the Nervous System). Its FY 2026 relative weight is 0.7488 with a geometric mean length of stay of 2.6 days.
What is the difference between DRG 75, 76?
All 2 share the same base category; the severity of secondary diagnoses separates them: 75 (with CC/MCC), 76 (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 76?
10 ICD-10-CM principal diagnosis codes group to this DRG, spanning 6 three-character categories.
What is the relative weight of DRG 76?
The FY 2026 relative weight of this DRG is 0.7488, meaning reimbursement of roughly 0.75 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
