Lyme disease, unspecified

This code represents a diagnosis of Lyme disease where the specific manifestation or organ involvement is not documented or is unknown. It indicates a confirmed or suspected infection with Borrelia burgdorferi without further clinical detail. This is a systemic infectious disease transmitted by ticks.

Use this code when the medical record confirms a diagnosis of Lyme disease but lacks specificity regarding neurological, cardiac, arthritic, or other organ system involvement. This code is appropriate for initial diagnoses where further workup is pending or when the patient presents with non-specific symptoms of Lyme disease. Documentation should clearly state "Lyme disease" without additional descriptive terms.

• Avoid using this code if specific manifestations (e.g., carditis, arthritis, neurological involvement) are documented; instead, use more specific codes within the A69.2 series.
• Do not use this code for suspected Lyme disease without a confirmed diagnosis; consider codes for signs and symptoms or Z20.7 for contact with and exposure to tick-borne diseases.
• Review the entire medical record for any mention of specific organ involvement before defaulting to this unspecified code.