Lyme borreliosis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

A tick-borne infection by the spirochaete Borrelia burgdorferi. Lyme borreliosis typically presents with a characteristic rash, erythema chronicum migrans, at an average of seven days after a bite from an infected tick. The rash may be accompanied by flu-like symptoms. Disseminated infection may cause meningitis, cranial neuropathies and carditis amongst other manifestations. Late disease, months to years after initial infection, may present with a pauciarticular arthritis or with encephalomyelitis.

sections/codes in this section (1C1G-1C1G)

• Early cutaneous Lyme borreliosis  (1C1G.0)
• Disseminated Lyme borreliosis  (1C1G.1)
• Other specified Lyme borreliosis  (1C1G.Y)
• Lyme borreliosis, unspecified  (1C1G.Z)

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