AHA Coding Clinic® for ICD-9 - 1984 November - December
Lyme Disease
Note: As of October 1, 1989, Lyme disease is coded to 088.81. The code assigned for Lyme disease is 088.8, Other specified arthropod-borne diseases. There can be additional codes for any clinical manifestations, such as arthritis of the knees, 711.86; myocarditis, 422.0; or meningoencephalitis, 321.8. Lyme disease is caused by a bacterium spread by ticks. The disease was first uncovered in a small town of Connecticut called Old Lyme. There, several children were found to have similar symptoms: stiffness in the joints, swelling, and pain. Doctors first thought it was a form of juvenile...
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Article Overview
This article explains Lyme disease in general medical terms and places it in a coding context by noting the diagnosis code historically assigned and examples of related manifestation codes. It is useful for coders, billers, and clinicians who need a broad understanding of how the condition may be documented and referenced in older diagnosis classification systems. The article also covers basic clinical presentation, progression, testing, and treatment at a high level.
Why This Topic Matters
Understanding how Lyme disease is discussed in coding references helps users connect the diagnosis to related manifestations documented in the chart. The article also provides general clinical background that may support interpretation of medical records without substituting for full coding guidance.
What You Will Learn
- How Lyme disease is described in a coding and clinical context
- That related manifestations may be documented separately
- General presentation, progression, testing, and treatment themes associated with the condition
- Why historical diagnosis coding references can matter when reviewing older records
Who Should Read This
- Medical coders
- Medical billers
- Clinical documentation staff
- Healthcare auditors
- Clinicians reviewing documentation
Codes Discussed
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