A27.81 Aseptic meningitis in leptospirosis

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

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 100.81 Leptospiral meningitis (aseptic)

Code annotations containing back-references to A27.81

Back-references to A27.81

• Type 1 Excludes: G01 Meningitis in bacterial diseases classified elsewhere ("leptospirosis (A27.81)")

Diagnosis Index entries for A27.81

• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › in (due to) › leptospirosis
• Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › leptospiral (aseptic)

Nearby codes

• A27 Leptospirosis
• A27.0 Leptospirosis icterohemorrhagica
• A27.8 Other forms of leptospirosis
• A27.81 Aseptic meningitis in leptospirosis (this code)
• A27.89 Other forms of leptospirosis
• A27.9 Leptospirosis, unspecified