G00.1 Pneumococcal meningitis

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applicable to

• Meningitis due to Streptococcal pneumoniae

Applies from G00 Bacterial meningitis, not elsewhere classified

Includes

• bacterial arachnoiditis
• bacterial leptomeningitis
• bacterial meningitis
• bacterial pachymeningitis

Excludes1 (never code together)

• bacterial meningoencephalitis (G04.2)
• bacterial meningomyelitis (G04.2)

MS-DRG index

Defines the logic of DRG(s) 023-024 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 320.1 Pneumococcal meningitis

Code annotations containing back-references to G00.1

Back-references to G00.1

• Use Additional: D59.31 Infection-associated hemolytic-uremic syndrome ("Pneumococcal meningitis (G00.1)")

Diagnosis Index entries for G00.1

• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › bacterial › pneumococcal
• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › in (due to) › Diplococcus pneumoniae
• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › in (due to) › Streptococcal pneumoniae
• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › pneumococcal streptococcus pneumoniae
• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › Streptococcal (acute) › pneumoniae

Nearby codes

• G00 Bacterial meningitis, not elsewhere classified
• G00.0 Hemophilus meningitis
• G00.1 Pneumococcal meningitis (this code)
• G00.2 Streptococcal meningitis
• G00.3 Staphylococcal meningitis
• G00.8 Other bacterial meningitis
• G00.9 Bacterial meningitis, unspecified