A69.21 Meningitis due to Lyme disease

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

Applies from A69.2 Lyme disease

Applicable to

• Erythema chronicum migrans due to Borrelia burgdorferi

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 088.81 Lyme Disease (approximate)

Code annotations containing back-references to A69.21

Back-references to A69.21

• Type 1 Excludes: G01 Meningitis in bacterial diseases classified elsewhere ("Lyme disease (A69.21)")

Back-references to A69.2

• Type 2 Excludes: A68 Relapsing fevers ("Lyme disease (A69.2-)")

Diagnosis Index entries for A69.21

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

Nearby codes

• A69 Other spirochetal infections
• A69.0 Necrotizing ulcerative stomatitis
• A69.1 Other Vincent's infections
• A69.2 Lyme disease
• A69.20 Lyme disease, unspecified
• A69.21 Meningitis due to Lyme disease (this code)
• A69.22 Other neurologic disorders in Lyme disease
• A69.23 Arthritis due to Lyme disease
• A69.29 Other conditions associated with Lyme disease
• A69.8 Other specified spirochetal infections
• A69.9 Spirochetal infection, unspecified